MCQ
Electrostatic is the branch of physics which deals with the:
- AForces between charges in motion.
- BForces between charges in rest.
- CBoth a and b.
- DNone.
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Capacitance (in F) of a spherical conductor with radius 1m is
|
(a) 1.1 |
(b) |
(c) 9 × |
(d) |
Radiations of intensity 0.5
are striking a metal plate. The pressure on the plate is
|
(a) 0.166 |
(b) 0.332 |
|
(c) 0.111 |
(d) 0.083 |
When current in a coil changes to 2 ampere from 8 ampere in 3
, the e.m.f. induced in the coil is 2 volt. The self inductance of the coil in millihenry is
|
(a) 1 |
(b) 5 |
(c) 20 |
(d) 10 |
Two long parallel wires carrying equal current separated by 1m, exert a force of 2 on one another. The current flowing through them is
|
(a) 2.0 A |
(b) 2.0 |
(c) 1.0 A |
(d) 1.0 |