CBSE > Class 12 > Physics | CBSE Board | Homework Help

Because of this change in electrolyte concentration the battery resistance increases during discharge.Loss of electrolyte is also a frequent cause of increase electrolyte resistance. eg, car battery discharge in 2or3 months due to this reason.

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Defiine magnifine power at an optical instument?

Posted by Vaibhav Saxena 7 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

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What is the cyclotron work?

Posted by Mukul Sharma 7 years, 3 months ago

CBSE > Class 12 > Physics

6 answers

Sachin Kanyal 7 years, 3 months ago

Only proton can be acclerated because electron have small mass and neutrons are neutral

0Thank You

Amandeep Kumar 7 years, 3 months ago

Haan.. Nutron ka mass bahut kam rahta hai.. Isiliye it can't be accelerated ... 1 rotation me Iska valocity bahut badh Jata hai

1Thank You

G K 7 years, 3 months ago

u r ry8 Mohammad Sazil,....cyclotron cant accelerate neutron

2Thank You

Mohammad Shazil 7 years, 3 months ago

Hey guys do u think that a cyclotron can accelerate a neutron. A neutron is electrically neutral and cyclotron works strong electric and magnetic fields. So i think a cyclotron cant accelerate a proton and an electron. If am wrong anywhere please correct me

1Thank You

Arnav Singh 7 years, 3 months ago

It is a particle accelerator like proto ,neutron,deutron

1Thank You

Azmat Ali 7 years, 3 months ago

To accelerate a heavy charged particle like proton , neutron etc. To a desired velocity.

2Thank You

ANSWER

Unique Topic for making project for class-12

Posted by Sanskar Thakur 7 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Rahul Sehlangia 7 years, 3 months ago

Double peddling cycle with solar

0Thank You

Amandeep Kumar 7 years, 3 months ago

Logic gtes

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ANSWER

Mention the two characteristic properties of the material suitable for making core of a transformer

Posted by Joti Pots 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Priyanshu Singh 7 years, 3 months ago

Two caracteristics are-: 1. Low hysterisis loss 2.low coercitivity

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How can draw phasor diagram

Posted by Mohd Arshlan 7 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Aarav Raj 7 years, 3 months ago

Always make an angle of 90 between them.

0Thank You

Kk Rai 7 years, 4 months ago

Phasor Diagram of a Sinusoidal Waveform. The phasor diagram is drawn corresponding to time zero ( t = 0 ) on the horizontal axis. The lengths of the phasors are proportional to the values of the voltage, ( V ) and the current, ( I ) at the instant in time that the phasor diagram is drawn.

2Thank You

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Is additional exercises are important for cbse board exam

Posted by Shivam Tiwari 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Harsh Sharma 7 years, 4 months ago

No they are not that important, you could skip them but remember to solve previous years papers

3Thank You

ANSWER

Capacitor blocks dc but allows ac why

Posted by Randhawa . 7 years, 4 months ago

CBSE > Class 12 > Physics

3 answers

H T 7 years, 3 months ago

For dc capacitor show infinite resistance

0Thank You

Aarav Raj 7 years, 3 months ago

Because when we charge capacitor by dc it offer resistance when it fully charge . that's why

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Priyanka Malik 7 years, 3 months ago

Xc=1/wc=1/2pi nu 4 ac nu=50hz Xc directly proportional to 1/nu Xc is small So can pass easily That's why allow ac 4 dc nu=0 Xc=1/0=infinity So blocks dc

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Name the current which can flow in absence of electric charge?.

Posted by Himanshu Saklani 7 years, 4 months ago

CBSE > Class 12 > Physics

5 answers

Aarav Raj 7 years, 3 months ago

Water current

0Thank You

Yashwardhan Rathore 7 years, 4 months ago

Displacement Current

0Thank You

Sonia Dhanda 7 years, 4 months ago

Displacement current

0Thank You

Akash Thakur 7 years, 4 months ago

DISPLACEMT CURRENT OR INDUCED MAGNETIC FIELD

0Thank You

Sanjay Singh 7 years, 4 months ago

Displacement current

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Why zener diode use as a voltage regulator

Posted by Samyak Jain 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Akash Thakur 7 years, 4 months ago

TO REGULATE OR FOR A STEADY VOLTAGE FROM AC VOLTAGE OR IRREGULAR VOLTAGE BY VOLTAGE DROP FROM ITS RESISTANCE .... ACCROSS IT

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What is the principle of davisson germer experiment?

Posted by Keerthana Raj 7 years, 4 months ago

CBSE > Class 12 > Physics

3 answers

Aarav Raj 7 years, 3 months ago

For verifition of wave nature experimentatly

1Thank You

Abhinav Kalaliya 7 years, 3 months ago

It is too easy. Refer to SL Arora

0Thank You

Priyanshu Sharma 7 years, 4 months ago

Mt padho bahut hard hai

2Thank You

ANSWER

Faraday laws explain

Posted by Prathav Mharaj 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Akash Thakur 7 years, 4 months ago

There are 2 laws. .. one is with a magnet and coil where movement of magnet shows the induced current which can be detected through ammeter placed in coil and 2nd is in between 2 coils .... Concept of mutual induction

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ANSWER

What is rayliegh scattering?

Posted by Akshay S 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

On the three points located at equal distance on a straight line, respectively, + 3q + q and Q are charged, if the total result force on q is zero, then what will be the value of Q

Posted by Afjal Alam 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Arunendra Singh 7 years, 4 months ago

+3q

3Thank You

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Formation of electron

Posted by Rithik Bhagat 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Which cheapters are theoretical in physics ?

Posted by Raghav Sharma 7 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Raghav Sharma 7 years, 3 months ago

Only this 2? Mate?

0Thank You

Rithik Bhagat 7 years, 4 months ago

Atom and nuclei

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When a resistance of 2 ohm is placed across the terminal of the battery the current is 0.5 A when the resistance across the terminal is 5 ohm the current is 0.25A calculate the emf of the battery

Posted by Muzahid Saifi 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

State the biotsavart law for the magnetic field due to a current carrying element use this law to obtain the formula for magnetic field at the centre of circular loop of radius R carrying a steady current i indicate the direction of magnetic field

Posted by Sonal Sonal 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Derivative of Electrostatic potential?

Posted by Aman Sonowal 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Define Faraday's laws of electromagnetic induction.

Posted by Sumit Kumar 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Rithik Bhagat 7 years, 4 months ago

See on byju app

2Thank You

ANSWER

Plz tell me any YouTube channel's for study physics, chemistry and maths...

Posted by Ajay Kumar 7 years, 4 months ago

CBSE > Class 12 > Physics

4 answers

Aryan Pandit 7 years, 3 months ago

Pathsala

0Thank You

Yashwardhan Rathore 7 years, 4 months ago

Examfear is the best channel for you or you can try pradeep kshetrapal's channel

1Thank You

Rithik Bhagat 7 years, 4 months ago

Drone study

2Thank You

Anjana Sherawat 7 years, 4 months ago

BYJU'S app can help you

2Thank You

ANSWER

Rainbow is which phenomena refraction reflection or total internal reflection

Posted by Technical Abhishek 7 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Abhinav Kalaliya 7 years, 4 months ago

Both refraction and TIR

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Akshay Satish 7 years, 4 months ago

Total internal reflection.

4Thank You

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How i can do phy better

Posted by Yash P. 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Matta Naveen 7 years, 4 months ago

Devide the syllabus into three categories, 1.topic 2.chapter 3.model paper,,,if you're reading topic,, understand it full,,, remember definitions,,,if you're reading chapter,mugup the formulas and diagrams,,if you're doing model paper,,,search anwers in textbook only everytime,,view differently selection,,

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Explain the diagram of total internal reflection

Posted by Harshitha Haridas 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Matta Naveen 7 years, 4 months ago

1.light ray enters from denser medium to rarer medium,2.angle of incidence is more than the critical angle.3.light ray reflects back,,,,,observe those 3 points in diagram

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Main topics in dual nature of radiation and matter?

Posted by Aastha Bhardwaj 7 years, 4 months ago

CBSE > Class 12 > Physics