The equation
is
|
(a) b -emission |
(b) a -emission |
(c) e– capture |
(d) Fission |
The equation
is
|
(a) b -emission |
(b) a -emission |
(c) e– capture |
(d) Fission |
(a) b -emission
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The magnetic induction in air at a point 1cm away from a long wire that carries a current of 1A, will be
|
(a) |
(b) 2 |
(c) 3 |
(d) 4 |
In the connections shown in the adjoining figure, the equivalent capacity between A and B will be

|
(a) 10.8 μF |
(b) 69 μF |
(c) 15 μF |
(d) 10 μF |
A coil has 1,000 turns and 500 cm2 as its area. The plane of the coil is placed at right angles to a magnetic induction field of 2
. The coil is rotated through 180° in 0.2 seconds. The average e.m.f. induced in the coil, in milli-volts, is
|
(a) 5 |
(b) 10 |
(c) 15 |
(d) 20 |
Three capacitors 2, 3 and 6 mF are joined in series with each other. What is the minimum effective capacitance
|
(a) |
(b) 1 mF |
(c) 2 mF |
(d) 3 mF |
At a place, the magnitudes of the horizontal component and total intensity of the magnetic field of the earth are 0.3 and 0.6 Oersted respectively. The value of the angle of dip at this place will be
| (a) 60° | (b) 45° | (c) 30° | (d) 0° |

The dimensions of magnetic flux are
|
(a) |
(b) |
(c) |
(d) |