- AEmitter, base and collector.
- BCollector, base and emitter.
- CBase, emitter and collector.
- DBase, collector and emitter.
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Two concentric coils each of radius equal to 2π cm are placed at right angles to each other. 3 ampere and 4 ampere are the currents flowing in each coil respectively. The magnetic induction in
at the centre of the coils will be (![]()
|
(a) 5 |
(b) 7 |
(c) 12 |
(d) |
The curve between current (i) and potential difference (V) for a photo cell will be
|
(a)
|
(b)
|
(c)
|
(d)
|
Four lowest energy levels of H-atom are shown in the figure. The number of possible emission lines would be
|
(a) 3 |
(b) 4 |
(c) 5 |
(d) 6 |
If a wire of resistance R is melted and recasted to half of its length, then the new resistance of the wire will be
|
(a) R/4 |
(b) R/2 |
(c) R |
(d) 2R |
What is the effective capacitance between points X and Y
|
(a) 24 μF |
(b) 18 μF |
(c) 12 μF |
(d) 6 μF |