- AZero
- B1
- CInfinite
- DNegative
Explanation:
The electrostatic potential on the perpendicular bisector due to an electric dipole is zero.
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Zener breakdown in a semi-conductor diode occurs when
|
(a) Forward current exceeds certain value |
(b) Reverse bias exceeds certain value |
|
(c) Forward bias exceeds certain value |
(d) Potential barrier is reduced to zero |
A common emitter amplifier is designed with NPN transistor (a = 0.99). The input impedance is 1 KW and load is 10 KW. The voltage gain will be
|
(a) 9.9 |
(b) 99 |
(c) 990 |
(d) 9900 |
The resistor of resistance 'R' is connected to 25 V supply and heat produced in it is 25 J/sec. The value of R is
|
(a) 225 Ω |
(b) 1 Ω |
(c) 25 Ω |
(d) 50 Ω |
Light of frequency 4n0 is incident on the metal of the threshold frequency n0. The maximum kinetic energy of the emitted photoelectrons is
|
(a) |
(b) |
(c) |
(d) |