Given below are two statements:
Assertion (A): Radio transmitters do not work satisfactorily when used inside a railway carriage.
Reason (R): Railway carriage is made of iron which acts as Faraday cages.
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.
Subtopic:  Electrostatic Shielding |
 88%
Level 1: 80%+
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Given below are two statements: 
Statement I: Electric potential is constant within and at the surface of each conductor.
Statement II: An electric field just outside a charged conductor is perpendicular to the surface of the conductor at every point.
 
1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.
Subtopic:  Electrostatic Shielding |
 82%
Level 1: 80%+
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