MCQ
The law, governing the force acting between two electric charges is known as :
- AAmpere law
- BOhm's law
- CFaraday's law
- ✓Coulomb's law
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Four charges +Q, -Q, +Q, -Q are placed at the corners of a square taken in order. At the centre of the square
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(a) E = 0, V = 0 |
(b) E = 0, V ≠ 0 |
(c) E ≠ 0, V = 0 |
(d) E = 0, V ≠ 0 |
The radius of circular path of an electron when subjected to a perpendicular magnetic field is
|
(a) |
(b) |
(c) |
(d) |