Two plates are 2 cm apart, a potential difference of 10 volt is applied between them, the electric field between the plates is
|
(a) 20 N/C |
(b) 500 N/C |
(c) 5 N/C |
(d) 250 N/C |
(b) 500 N/C
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A current of 2.0 ampere passes through a cell of e.m.f. 1.5 volts having internal resistance of 0.15 ohm. The potential difference measured, in volts, across both the ends of the cell will be
|
(a) 1.35 |
(b) 1.50 |
(c) 1.00 |
(d) 1.20 |
A current i ampere flows along the inner conductor of a coaxial cable and returns along the outer conductor of the cable, then the magnetic induction at any point outside the conductor at a distance r metre from the axis is
|
(a) ∞ |
(b) Zero |
(c) |
(d) |
One metallic sphere A is given positive charge whereas another identical metallic sphere B of exactly same mass as of A is given equal amount of negative charge. Then
|
(a) Mass of A and mass of B still remain equal |
|
(b) Mass of A increases |
|
(c) Mass of B decreases |
|
(d) Mass of B increases |
A particle with charge q, moving with a momentum p, enters a uniform magnetic field normally. The magnetic field has magnitude B and is confined to a region of width d, where d < 
, The particle is deflected by an angle θ in crossing the field
|
(a) sinθ = |
(b) sinθ = |
(c) sinθ = |
(d) sinθ = |
