- A1.00866u
- B1.0866u
- C1.866u
- D0.1866u
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An example of a diamagnetic substance is
|
(a) Aluminium |
(b) Copper |
(c) Iron |
(d) Nickel |
The kinetic energy of electron and proton is
. Then the relation between their de-Broglie wavelengths is
|
(a) |
(b) |
(c) |
(d) |

Two identical bar magnets with a length 10 cm and weight 50 gm-weight are arranged freely with their like poles facing in a inverted vertical glass tube. The upper magnet hangs in the air above the lower one so that the distance between the nearest pole of the magnet is 3mm. Pole strength of the poles of each magnet will be
|
(a) 6.64 amp × m |
(b) 2 amp × m |
(c) 10.25 amp × m |
(d) None of these |
In a step-up transformer the turn ratio is 1:10. A resistance of 200 ohm connected across the secondary is drawing a current of 0.5 A. What is the primary voltage and current
|
(a) 50 V, 1 amp |
(b) 10 V, 5 amp |
(c) 25 V, 4 amp |
(d) 20 V, 2 amp |
The effective capacitance between the points P and Q of the arrangement shown in the figure is

|
(a) |
(b) 1 |
(c) 2 |
(d) 1.33 |