- Ais maximum somewhere between surface and centre.
- Bis maximum at surface.
- Cis maximum at centre.
- Dremains same throughout the conductor.
Explanation:
Given that some charge is given to a conductor then the whole charge is distributed over its surface only. Inside of conductor, electric field is zero whereas potential is same as on the surface. Hence, throughout the conductor, potential is same i.e, the whole conductor is equipotential.
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A charge q is placed at the centre of the line joining two equal charges Q. The system of the three charges will be in equilibrium, if q is equal to
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(a) |
(b) |
(b) |
(d) |
This symbol represents
|
(a) NOT gate |
(b) OR gate |
(c) AND gate |
(d) NOR gate |
Masses of 3 wires of same metal are in the ratio 1 : 2 : 3 and their lengths are in the ratio 3 : 2 : 1. The electrical resistances are in ratio
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(a) 1 : 4 : 9 |
(b) 9 : 4 : 1 |
(c) 1 : 2 : 3 |
(d) 27 : 6 : 1 |
The measurement of voltmeter in the following circuit is
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(a) 2.4 V |
(b) 3.4 V |
(c) 4.0 V |
(d) 6.0 V |
A potential difference of 42,000 volts is used in an X-ray tube to accelerate electrons. The maximum frequency of the X–radiations produced is (1 eV = 1.6
and h = 6.63 ![]()
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(a) |
(b) |
(c) |
(d) |