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What was oersted's experiment ?? Do we need to study the experiment conducted by him or just the principle. ??

Posted by Priya Dharshini ? 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Why are electric field lines cannot intersect each other?

Posted by Vaibhav Kaushik 6 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Nasima Khan 6 years, 3 months ago

Two electric field lines never intersect each other becoz they represent direction of intensity at any point since electric field line single value function so there is no point of intersection that represent two direction of intensity.

Ram Prasad 6 years, 3 months ago

electric field lines do not cross each other because if they intersect then for that particular place field will have two different directions which is not possible.

ANSWER

Using the concept of force between two infinitely long parallel current carrying conductors, define one ampere of current.

Posted by Infintely Infinity 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

In a network four capacitors c1 c2 c3 and c4 are connected as shown in fig. Calculate the net capacitance in the circuit If the charge on capacitor c1 is 6micre coulomb than calculate the charge on capacitor c3 and c4 and net energy stored in the capaciotos c3 and c4 connected in series

Posted by Shivendra Kumar 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Formulas of all chapters

Posted by Sunita Sahu 6 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

S.....Sharma☺??? .. 6 years, 3 months ago

Aapko ye net se mil jayega

Priya Dharshini ? 6 years, 3 months ago

R u kidding... u wany all formula...

ANSWER

Yaar ye SL or HCV kya hota h

Posted by Kritika Choudary 6 years, 3 months ago

CBSE > Class 12 > Physics

3 answers

Priya Dharshini ? 6 years, 3 months ago

Sl and hc verma are reference books of physics..

Aman Kumar 6 years, 3 months ago

They are the reference book of physics...

Ďãřşháñăã Yadav ? ? ? 6 years, 3 months ago

SL Arora and HC Verma. both are the books of physics.

ANSWER

Why are electric field lines perpendicular at a point on an equipotential surface of a conductor?

Posted by Swati Kumari 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Yogita Ingle 6 years, 3 months ago

Electric field lines perpendicular at a point on an equipotential surface of a conductor because there is no potential gradient along any direction parallel to the surface , and so no electric field parallel to the surface. This means that the electric lines of force are always at right angle to the equipotential surface.

ANSWER

What is denser medium

Posted by J K 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Sia ? 6 years, 3 months ago

A medium in which light travels comparatively slower than the other medium is called an optically denser medium.

ANSWER

Does the charge given to a metallic sphere depend on wheather it is hollow or solid ? Give reason.

Posted by Swati Kumari 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

J K 6 years, 3 months ago

No . Because metal is a good conductor whether it is hollow or solid it allows the passage of electrons through it

ANSWER

Physics ko kaise smjhe .... boht tough h

Posted by Kritika Choudary 6 years, 3 months ago

CBSE > Class 12 > Physics

6 answers

Priya Dharshini ? 6 years, 3 months ago

Read the chapter then do ncert questions using formula.... try to understand the derivation of formula instead of mugging up it.... Physics is tough i can understand, give more time for physics... practice 10 yrs board paper and sl arora anf ncert... sure u will score good marks and infact u will understand it nicely....

Jagjot Kaur 6 years, 3 months ago

Focus on ncert

Jagjot Kaur 6 years, 3 months ago

Sl arora and hc verma books of physics

Sachin Kushwah 6 years, 3 months ago

kritika padna padega

Kritika Choudary 6 years, 3 months ago

Yaar dekh u mt smjna ki ise kuch nhi aata pr sch me mujhe nhi pta ki SL or HCV kya hota h plz bta de

Řøhăň Řąjpůť ✌️✊ 6 years, 3 months ago

deekh bhai zyada tough nhi hai bahut accha subject hai easily score ho jata hai first apne concept clear rekh, formals chaap le dimag mein, ncert toh tu acche padh le acche se means ek ek question aana chahhiye. aur SL ker le kyuki HCV karene ka fayeda nhi hoga Tera. All the very best ?

ANSWER

Define specific resistance write its SI unit drive an expression for resistivity of a wire in terms of its peremeters no density of free electron

Posted by Sunita Sharma 6 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Nishu Sahu 6 years, 3 months ago

Derivation u can read from book.

Nishu Sahu 6 years, 3 months ago

Specific resistance of a wire is equal to the resistance of wire having unit length and unit area of cross section. SI unit is ohm-metre.

ANSWER

What is quantijation

Posted by Ashish Gupta 6 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Yogita Ingle 6 years, 3 months ago

The transfer of electrons from one substance to the other is lead to charging of the bodies. It is found that the charge on anybody is always equal to integral multiple of the charge of electron. It does mean that charge cannot be divided in random manner but can be divided in such a manner that both parts after division must be integral of elementary charge. This property of charge is known as quantisation of electric charge.
Thus we can say that any charge
Q = ne, Where n= 1, ±2,… and so on.

Nishu Sahu 6 years, 3 months ago

Quantinisation means total charge of a body is integral multiple of charge of electron. q=ne

ANSWER

How many electrons would have to be removed from a copper penny to leave it with a positive charge of 10-7 C?

Posted by Neha Kumari 6 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Sonam Rani 6 years, 3 months ago

6×10^11

Archit Srivastav 6 years, 3 months ago

6.2 X 10'11

ANSWER

What is electrostatic?

Posted by Bhavagna Bandaru 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Killer Arya 6 years, 3 months ago

The branch of physics which deals with the charges at rest that is static charge, the forces between the static charges, fields nd potential due to these charges is called electrostatic

ANSWER

Proof that E = MC square

Posted by Anil Khateek 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Write the relation between i and vd in current electricity

Posted by Mariya Sabu 6 years, 3 months ago

CBSE > Class 12 > Physics

3 answers

Nishu Sahu 6 years, 3 months ago

I = AneVd

Archit Srivastav 6 years, 3 months ago

i=anqVd

Priya Dharshini ? 6 years, 3 months ago

Vd = j/q, j is current density and vd is drift velocity,q is charge

ANSWER

If a body contains n1 electrons and n2 protons,then what will be the total amount of charge on the body?

Posted by Aisw B 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Archit Srivastav 6 years, 3 months ago

1.6 *10'-19(n1+n2)

ANSWER

An electro and proton are releasedfrom rest in uniform electrostatic field which of them have larger accelaration and why

Posted by Sadhana Yadav 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Yogita Ingle 6 years, 3 months ago

Electron has larger acceleration because electron is less massive compared to the proton mass . And also mass is inversely proportional to the acceleration related to F=ma

ANSWER

A 100 watt device is used to heat 1 litre of water from 30 degree celsius to 100 degree celsius ,what is the time in which it is done.?

Posted by Hamit Sehjal 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Find the equivalent resistance across A and B also find the curent in branches DE and AB a battery of emf E is connected across Aand B

Posted by Lucky Vashishtha 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Nishu Sahu 6 years, 3 months ago

Where is diagram?

ANSWER

Parallel plate capacitor

Posted by Mansi Vasava 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Aman Kumar 6 years, 3 months ago

Capacitance (C)= A€./d

ANSWER

5. Which one of the two, an ammeter or a mill ammeter has a higher resistance and why?

Posted by Navjot Pooner 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Yogita Ingle 6 years, 3 months ago

A milliammeter will have a comparatively higher resistance as in an ammeter, a very low shunt is connected in parallel. It is also required that more current passes through an ammeter unimpeded.

ANSWER

Curren kya hota hai

Posted by Sarvjeet Singh 6 years, 3 months ago

CBSE > Class 12 > Physics

3 answers

Hritik Kumar 6 years, 3 months ago

The rate of flow of electric charge

Ayush Kumar 6 years, 3 months ago

Rate of flow of charge is cld current i.e I = q/t

Aman Kumar 6 years, 3 months ago

U mean CURRENT....It is the flow of charge with time is called Current....denoted by I=Q/t

ANSWER

Kya compartment mai pass ho jate hai

Posted by Abhishek Chaudhary 6 years, 3 months ago

CBSE > Class 12 > Physics

5 answers

Ďãřşháñăã Yadav ? ? ? 6 years, 3 months ago

12th hai toh kya yarr itna serious bhe na lo.

Řøhăň Řąjpůť ✌️✊ 6 years, 3 months ago

pagl dara ni raha sachayi boli hai . itna cool bhe na lo chezo ko after all 12th hai

Ďãřşháñăã Yadav ? ? ? 6 years, 3 months ago

Rohan kyu dara rahi usay... ? ? bhai simple aata hai bus aap apni preparation acchi rekhna ... baaki Rohan rajput ki baato ko neglect ker do. all the best . ✌️

Řøhăň Řąjpůť ✌️✊ 6 years, 3 months ago

dekho compartment ka paper tough hota hai but do ur best dude. never repeat ur mistake again as they are giving u a second chance.

Vaibhav Tripathi 6 years, 3 months ago

Yes if you will work hard

ANSWER

Will a pair of neutron attract or repel each other ?

Posted by Ankit Dwivedi 6 years, 3 months ago

CBSE > Class 12 > Physics

3 answers

Sia ? 6 years, 3 months ago

Neutrons neither attract or repel each other or other particles because they are electrically neutral i.e. they have no charge.

Ankit Dwivedi 6 years, 3 months ago

They will neither attract or repel each other because of being electrical neutral. But neutron has mass and a pair of masses always attracts each other due to gravitational force. Hence, i think they will attract each other as electrostatic force is zero but gravitational force is acting between them.

Preeti Baliyan 6 years, 3 months ago

They have no charge so they neither attract nor repel each other

ANSWER

Two charges 20×10^-6 c and -4×10^-6 c are separated by a distance 50 cm in air find the point on the line joining the charges where electrostatic potential is zero and calculate the ele troztatic potential energy of the system

Posted by T D 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

I want solutions for cbse practice paper class 12 current electricity

Posted by Jenia Jenia 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Cause of earth's magnetism

Posted by Lonesh Barman 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

A parallel plate capacitor of capacitance 20 mF is being charged by a voltage source whose potential is changing at the rate of 3 V/s. Then find the conduction current through the connecting wires, and the displacement current through the plates of the capacitor, would be, respectively

Posted by Ďãřşháñăã Yadav ? ? ? 6 years, 3 months ago

CBSE > Class 12 > Physics

6 answers

Aman Kumar 6 years, 3 months ago

?????

Řøhăň Řąjpůť ✌️✊ 6 years, 3 months ago

dhanyawaad ho gaya open.. aur rahi baat holiday home work ki tujhe mujhe dekh ker lagta hai mai holiday home work kerunga.. ? ? kya baat ker di yarr tune bhe. ?

Ďãřşháñăã Yadav ? ? ? 6 years, 3 months ago

thanks for the answer .. kyu aagya fir se.. ? ? ? . pareshaan karega.. ? ? vese aap mein student ID put ker fir forget password per click ker fir vaha Jo tune apna number schl mein de rekha hai vo daal fir otp ayega otp daal khul jayega aap... aur Haan holiday home work mat keryio... ? ?

Řøhăň Řąjpůť ✌️✊ 6 years, 3 months ago

vese ek help ker diyo schl app login nhi ho ra bta de sub try ker Liya but invalid user name bta rha hai.

Řøhăň Řąjpůť ✌️✊ 6 years, 3 months ago

vese NEET ka question hai ye. ? ? tej chal ri hai ladki. deekh le JEE aspirant ne solve kiya hai.

Řøhăň Řąjpůť ✌️✊ 6 years, 3 months ago

here is your answer ? ? ➡️ c= 20 x 10^-6 ➡️dv/dt = 3 v/s ➡️q = cv ➡️dq/dt = c dv/dt = 20 x 10^-6 x 3 = 60 x 10^-6 ➡️ I c = 60 μ A displacement of current I d = I c = 60 μ A __ #Iam back. ???

ANSWER

Which topic is good for physics investigatory project ?

Posted by Rohan Jaiswal 6 years, 3 months ago

CBSE > Class 12 > Physics

4 answers

Řøhăň Řąjpůť ✌️✊ 6 years, 3 months ago

vese same ho skta hai after all hum dono la section alag hai toh sir ne bola tha class mein same ni hona chahhiye bus ..baki pcm auricle pcb grp mein ho skta hai. mat keriyo change tujhse tepunga Pura.... ? ? ?

Ďãřşháñăã Yadav ? ? ? 6 years, 3 months ago

mai ni change Kerne wali Maine phale he ye topic le liya tha... baaki tu deekh le ?

Řøhăň Řąjpůť ✌️✊ 6 years, 3 months ago

mera bhe yahi topic hai. change ker liyo tu Verna dono ka same ho jayega.

Ďãřşháñăã Yadav ? ? ? 6 years, 3 months ago

electromagnetic induction

ANSWER

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