Class 12 Physics Chapter Electric Charges and Fields Free test quiz

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Electric Charges and Fields Free test quiz

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12th Physics: Electric Charges and Fields

1 / 10

1. The value of electric permittivity of free space is

9 × 10⁹ NC²/m²

8.85 × 10^–12Nm²/C² sec

8.85 × 10^–12 C²/Nm²

9 × 109C²/Nm²

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2 / 10

2. Assertion : On moving a distance two times the initial distance away from an infinitely long straight uniformly charged wire the electric field reduces to one third of the initial value.
Reason : The electric field is inversely proportional to the distance from an infinitely long straight uniformly charged wire.

Assertion is correct, reason is correct; reason is a correct explanation for assertion.

Assertion is correct, reason is correct; reason is not a correct explanation for assertion

Assertion is correct, reason is incorrect

Assertion is incorrect, reason is correct.

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3 / 10

3. When a comb rubbed with dry hair attracts pieces of paper. This is because the

comb polarizes the piece of paper

comb induces a net dipole moment opposite to the direction of field

electric field due to the comb is uniform

comb induces a net dipole moment perpendicular to the direction of field

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4 / 10

4. Quantisation of charge implies

charge cannot be destroyed

charge exists on particles

there is a minimum permissible charge on a particle

charge, which is a fraction of a coulomb is not possible.

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5 / 10

5. The electric field at a point on equatorial line of a dipole and direction of the dipole moment

will be parallel

will be in opposite direction

will be perpendicular

are not related

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6 / 10

6. The electric field inside a spherical shell of uniform surface charge density is

zero

constant different from zero

proportional to the distance from the curve

None of the above

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7. Electric lines of force

exist everywhere

exist only in the immediate vicinity of electric charges

exist only when both positive and negative charges are near one another

are imaginary

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8 / 10

8. An electric dipole will experience a net force when it is placed in

a uniform electric field

a non-uniform electric field

both (a) and (b)

None of these

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9 / 10

9. An electric dipole is kept in a non-uniform electric field. It experiences

a force and a torque

a force but not a torque

a torque but no force

neither a force nor a torque

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10. When some charge is transferred to ...A... it readily gets distributed over the entire surface of ... A... If some charge is put on ... B..., it stays at the same place. Here, A and B refer to

insulator, conductor

conductor, insulator

insulator, insulator

conductor, conductor

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This comprehensive test quiz is designed to help you grasp the fundamental concepts of electric charges and fields in a fun and interactive manner. The quiz includes a wide range of questions. You can access the test paper as a downloadable PDF, allowing you to take the quiz at your convenience and pace.

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Don’t miss out on this excellent opportunity to boost your preparation for the Class 12 Physics exam. Download the PDF test paper and embark on your journey to success in Physics. With dedication and practice, you can excel in your exams and pave the way for a bright future in the field of science and beyond. Best of luck with your studies and the upcoming exam!

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Mohit Sinha

I’m Mohit Sinha! With a Master’s degree in Physics, I bring a deep understanding of the subject to my teaching. I specialize in guiding students through the complexities of Physics for 11th and 12th grades and also offer English instruction from 1st to 12th grade. When I'm not in the classroom, I'm passionate about creating engaging educational content for QuizRanker.org, where I help make learning both fun and effective.

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