An electron having charge ‘e’ and mass ‘m’ is moving in a uniform electric field E. Its acceleration will be
|
(a) |
(b) |
(c) |
(d) |
An electron having charge ‘e’ and mass ‘m’ is moving in a uniform electric field E. Its acceleration will be
|
(a) |
(b) |
(c) |
(d) |
(c)
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Two bulbs of 500 watt and 200 watt are manufactured to operate on 220 volt line. The ratio of heat produced in 500 W and 200 W, in two cases, when firstly they are joined in parallel and secondly in series, will be
|
(a) |
(b) |
(c) |
(d) |
An alternating voltage of 141.4V (rms) is applied to a vacuum diode as shown in the figure. The maximum potential difference across the condenser will be
|
(a) 100 V |
(b) 200 V |
(c) 100 |
(d) 200 |
For television broadcasting, the frequency employed is normally
|
(a) 30-300 MHz |
(b) 30-300 GHz |
(c) 30-300 KHz |
(d) 30-300 Hz |