Question

When 1019
electrons are removed from a neutrai metal plate, the electric charge on it is
(50)
(a)-1.6 C
(b) +1.6 C
(C) 10+19 C
If E, be the electric field strength of a short dipole at a point on its axial line and E2 that on t
(d) 10-19
equatorial line at the same distance, then
(a) Ej = E2
(b) Ej = 2E2 (c) E2=2E
(d) none of these
Gauss's law is valid for
(a) Any closed surface
(b) Only regular closed surfaces
(c) Any open surface
(d) Only irregular open surfaces.
When air is replaced by a dielectric medium of dielectric constant K, the maximum force of attract
between two charges separated by a distance
(a) decreases k times
(b) remains unchanged
(c) increases k times
(c) decreases K2 times.​

Answer 1

Answer:

d) none of these gauss law is valid for

Answer 2

Answer:

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