MCQ
Temperature coefficient of resistance of semiconductor is:
- AZero.
- BConstant.
- CPositive.
- DNegative.
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A parallel plate capacitor has an electric field of between the plates. If the charge on the capacitor plate is 1μC, the force on each capacitor plate is
|
(a) 0.5 N |
(b) 0.05 N |
(c) 0.005 N |
(d) None of these |
Mean life of a radioactive sample is 100 seconds. Then its half life (in minutes) is
|
(a) 0.693 |
(b) 1 |
(c) 10-4 |
(d) 1.155 |
