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How we verifiying ohms law by wire

Posted by Akanksha Tripathi 4 years, 3 months ago

2 answers

Md Aftab Alam 4 years, 3 months ago

The amount of current passing through the circuit is directly proportional to the potential difference across the ends of circuit. You can verify this theory by passing the current through the wire.

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Shrishti Singh ? 4 years, 3 months ago

https://www.vedantu.com/question-answer/draw-a-labeled-diagram-of-the-experiment-class-10-physics-cbse-5f63e605b12a162d4fdad0ff

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How i scan figure

Posted by Akanksha Tripathi 4 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Sia ? 4 years, 3 months ago

The 6-Step Guide to Scanning and 3D Printing a Figurine

Step 1: First +Quickscan.
Step 2: Second +Quickscan.
Step 3: Regular Scan.
Step 4: Meshing and Exporting.
Step 5: Prepare Model for 3D Printing.
Step 6: Print!

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Where can I get previous year papers at reasonable price?

Posted by Md Aftab Alam 4 years, 3 months ago

CBSE > Class 10 > Science

0 answers

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Science chapter 10.7 ,10.8 ,10.9 activities explanation

Posted by Srisruthy S 4 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Nishant Jha 4 years, 3 months ago

Yahaa

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How does an earthquake occur?

Posted by Mohit Chauhan 4 years, 3 months ago

CBSE > Class 10 > Science

3 answers

Anmol Preet 4 years, 3 months ago

An earthquake is caused by a sudden slip on a fault. ... When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel. In California there are two plates - the Pacific Plate and the North American Plate.

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Mohit Chauhan 4 years, 3 months ago

What is that energy and plates?

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Suba Kannan06 4 years, 3 months ago

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What is nitrogen and what it's uses

Posted by Mohit Chauhan 4 years, 3 months ago

CBSE > Class 10 > Science

3 answers

Md Aftab Alam 4 years, 3 months ago

it is an inert gas. It is present in the last group of Modern periodic table. It is used to flush the packets of chips and other such things.

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Rashmi Kumari 4 years, 3 months ago

Nitrogen is gas that is found in our atmosphere.Thia gas is used for packing the chips to prevent rancidity

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Abhay Kumar 4 years, 3 months ago

Iska use chips vghera kr peketas me use hota h

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Why is evolution of gas

Posted by Sarthak Singh 10B 4 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Sia ? 4 years, 3 months ago

A gas evolution reaction is a chemical reaction in which one of the end products is a gas such as oxygen or carbon dioxide. Gas evolution reactions may be carried out in a fume chamber when the gases produced are poisonous when inhaled or explosive.

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We say that plants give Oxygen to us. And release Carbon dioxide in night . What gas we take in night If plants release Carbon dioxide?

Posted by Mohit Chauhan 4 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Himanshu Pandey 4 years, 3 months ago

There is enough oxygen present in our atmosphere by which at night this oxygen is used by the people and some plants and trees such as ( pipal , neem , bargad) they release only oxygen throughout whole day as well as night. So at night we also inhale the oxygen gas

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What are the formulas of kinematic equations and term involved in it

Posted by Gurucharan D M 4 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Tahzib Jamadar 4 years, 3 months ago

The kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.

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Write 10 examples each of Combination reactions, Decomposition reactions, Displacement, Double displacement reactions, with balanced equations.

Posted by Shailesh Verma 4 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Sia ? 4 years, 3 months ago

Displacement reaction :
A single-displacement reaction, also known as a single-replacement reaction, is a reaction by which one (or more) element(s) replaces an/other element(s) in a compound. It can be represented generally as:
A+B−C→A−C+B
All simple metal with acid reactions are single displacement reactions. For example, the reaction between magnesium, Mg, and hydrochloric acid, HCl, forms magnesium chloride, MgCl₂, and hydrogen, H₂.
Mg(s)+2HCl(aq)→MgCl₂(aq)+H₂(g)

Decomposition reaction :
A decomposition reaction is a type of chemical reaction where one reactant yields two or more products.
The general form for a decomposition reaction is
AB→A+B
Water can be separated by electrolysis into hydrogen gas and oxygen gas through the decomposition reaction: 2H₂O → 2H₂+ O₂
Another example is the spontaneous decomposition of hydrogen peroxide into water and oxygen: 2H₂O₂ → 2H₂O + O₂
The decomposition of potassium chlorate into potassium chloride and oxygen is yet another example: 2KClO₃→ 2KCl + 3O₂

Combination reaction :
A combination reaction (also known as a synthesis reaction) is a reaction where two or more elements or compounds (reactants) combine to form a single compound (product). Such reactions may be represented by equations of the following form : X + Y → XY.
Formation of calcium oxide by the combination elements calcium and oxygen. 2Ca + O₂→ 2CaO
Formation of ammonia by the combination of elements nitrogen and hydrogen. N₂+ 3H₂ → 2NH₃

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Which pigment is necessary for photosynthesis?

Posted by Vaishnavi Yerpude? 4 years, 3 months ago

CBSE > Class 10 > Science

4 answers

Aastha Choudhary 4 years, 3 months ago

Chlorophyll....

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Himanshu Pandey 4 years, 3 months ago

Chlorophyll is the pigment which is necessary for photosynthesis because it converts the solar energy into chemical energy

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Md Aftab Alam 4 years, 3 months ago

Chlorophyll

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Prachi Maurya 4 years, 3 months ago

Chlorophyll

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A converging lens has a focal length of 250mm.calculate it's power and express it according to sign convention

Posted by Khushi Chaudhary 4 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Adithya Dev A 4 years, 3 months ago

f = 250 mm = 250 / 1000 m = 1/4 m.// Therefore, Power P = 1/f = 1/(1/4) = 4 D.// Since converging lens is CONVEX, P = +4D.

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How will you find the valency of chlorine, sulphur and magnesium?

Posted by K Vikas Kashyap 4 years, 3 months ago

CBSE > Class 10 > Science

3 answers

Himanshu Pandey 4 years, 3 months ago

We can find the valency of these elements by "electric configeration method " By the way , the valency of.... Magnisium = 2 Sulphur = 2 Chlorine = 1

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Khushi Chaudhary 4 years, 3 months ago

Magnesium valency is 2

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Khushi Chaudhary 4 years, 3 months ago

Chlorine valency 1 sulphur valency 2 magnesium valency 6

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In which direction would a compass needle align if taken to geographic a. North b. South ?

Posted by Naresh Saini 4 years, 3 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

What is a decomposition reaction ? Give an example of a a thermal decomposition reaction and a decomposition reaction caused by light(photolytic)

Posted by Aishwarya Kodavanti 4 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Prachi Maurya 4 years, 3 months ago

The reaction in which a single compound breakdown into two or more simpler s ubstances is called decomposition reaction. Thermal decomposition- 2FeSO4➡️ Fe2O3+ SO2+ SO3 Photolytic reaction- 2AgCl➡️ 2Ag + Cl2

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Magnetic field on the left side of a straight current carrying wire is pointed upward. What will be the direction of magnetic field on its right side ?

Posted by Naresh Saini 4 years, 3 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

What are the functions of alveolar sacs?

Posted by Udit Pratap Singh 4 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Sia ? 4 years, 3 months ago

Alveoli are an important part of the respiratory system whose function it is to exchange oxygen and carbon dioxide molecules to and from the bloodstream. These tiny, balloon-shaped air sacs sit at the very end of the respiratory tree and are arranged in clusters throughout the lungs.

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A piece of wire having resistance r is cut into five equal parts. (I) How will the resistance of each part of the wire compare with original resistance ? (II) If the five parts of the wire placed in parallel,how will the resistance of the combination compare with the resistance of the original wire ? What will be the ratio of resistance in series to that of parallel?

Posted by Mansi Insa 4 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Sia ? 4 years, 3 months ago

Therefore, resistance of each part
➾ R/5
All the five parts are connected in parallel.
∴ equivalent resistance (R') is given as
1 / R'
➾ 5 / R + 5 / R + 5 / R + 5 / R + 5
➾ 5 + 5 + 5 + 5 + 5 / R
➾ 1 / R' = 25 / R
➾ R / R' = 25

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Explain with a specific example how catalytic currents are useful for trace analysis of number of transition metal ions

Posted by Rajdeep Misra 4 years, 3 months ago

CBSE > Class 10 > Science

0 answers

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Describe the glands and their secretions involved in the digestive system

Posted by Manish Gupta 4 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Adithya Dev A 4 years, 3 months ago

1) Salivary glands = present in our mouth, secretion is saliva, enzyme present in secretion is salivary amylase, breaks down 30% starch to maltose. 2) GASTRIC GLANDS = present in stomach, secretion is gastric juice, enzyme present is pepsin, breaks down proteins into peptones. 3) LIVER = present in upper abdomen, secretes bile salts, has no enzymes but helps in emulsification of fats. 4) PANCREAS = found below the stomach, secretes pancreatic juice, enzymes present are trypsin (peptones -> peptides), pancreatic lipase (emulsified fats -> fatty acids and glycerol.) and amylase (70% starch to maltose). 5) INTESTINAL GLANDS = present in small intestine, secretes intestinal juice, enzymes present are intestinal lipase (emulsified fats -> fatty acids and glycerol), peptidase (peptides -> amino acids) and maltase (maltose -> glucose).

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Identify the type of each of the following reactions stating reason for your answers fe2O3+2al~al2O3+2fe+heat

Posted by Rakshana Rakshanasara 4 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Prachi Maurya 4 years, 3 months ago

Displacement reaction. It is also an exothermic reaction

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Vishvesh Mishra 4 years, 3 months ago

This is displacement reaction because the more reactive substance -Al displaces less reactive metal- Fe . Also it is exothermic reaction since heat is evolved.

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Which chapter is most important and difficult

Posted by Khushi Shergill 4 years, 3 months ago

CBSE > Class 10 > Science

4 answers

Dali Sahu 4 years, 3 months ago

Life process

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Dhiraj Tiwary 4 years, 3 months ago

Trigonometry in maths

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Ritika Ritika 4 years, 3 months ago

Chemical reaction and equation. And light

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Mahendra Pal 4 years, 3 months ago

In Science ch-6 is very important

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Which of the following expression does not represent the electric power in the circuit

Posted by Shree Sharma 4 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Sia ? 4 years, 3 months ago

P=VI.............(i)

Hence, option (c) represents power.

V=IR.............(ii)

From (i) and (ii),

P=I²R

P=V²/R

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(iv) What is the colour of flame during combustion of magnesium ?

Posted by Aditi Rana 4 years, 3 months ago

CBSE > Class 10 > Science

3 answers

Nayana Sri 4 years, 3 months ago

Dazzling white light

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Dax Soni 4 years, 3 months ago

Dazzling white light

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Devansi Pattnaik 4 years, 3 months ago

dazzling white light

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Acid and base salt

Posted by Bimlesh Nagar 4 years, 3 months ago

CBSE > Class 10 > Science

3 answers

Adithya Dev A 4 years, 3 months ago

SALTS are substances obtained on neutralisation reaction between an acidic and a basic substance. They are formed when the H+ radical in acids is replaced by a (METAL)+ radical.

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Adithya Dev A 4 years, 3 months ago

Salt of a strong acid and a weak base is always ACIDIC in nature and its pH is <7. Whereas, salt of a strong base and a weak acid would always be BASIC in nature.

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Bimlesh Nagar 4 years, 3 months ago

What is a salt

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What act is taken by male and female to reproduce?

Posted by Janvi Verma 4 years, 3 months ago

CBSE > Class 10 > Science