Equivalent resistance between the points A and B is (in W)
|
(a) |
(b) 1 |
(c) 2 |
(d) 3 |
Equivalent resistance between the points A and B is (in W)
|
(a) |
(b) 1 |
(c) 2 |
(d) 3 |
(c) 2
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A magnet oscillating in a horizontal plane has a time period of 2 second at a place where the angle of dip is 30o and 3 seconds at another place where the angle of dip is 60o. The ratio of resultant magnetic fields at the two places is
|
(a) |
(b) |
(c) |
(d) |
Force between two unit pole strength placed at a distance of one metre is
| (a) 1 N |
(b) |
(c) |
(d) 4π |
A metal plate gets heated, when cathode rays strike against, it due to
|
(a) Kinetic energy of cathode rays |
(b) Potential energy of cathode rays |
|
(c) Linear velocity of cathode rays |
(d) Angular velocity of cathode rays |
A conducting wire frame is placed in a magnetic field which is directed into the paper. The magnetic field is increasing at a constant rate. The directions of induced current in wires AB and CD are

|
(a) B to A and D to C |
(b) A to B and C to D |
|
(c) A to B and D to C |
(d) B to A and C to D |

