Electronic Devices And Circuits - Study Mode
[#81] If a donor type impurity is added to the semiconductor, then at a given temperature, the Fermi Level
Correct Answer
(C) Moves towards the conduction band
[#82] In PN junction diode, P side is doped with acceptor concentration of 2 × 10 16 cm -3 , N side is doped donor concentration of 5 × 10 17 cm -3 . The contact potential of diode is: Assume thermal equivalent voltage equal to 26 mV and intrinsic carrier concentration equal to 1.45 × 10 10 cm -3 .
Correct Answer
(A) 0.82 V
[#83] The forward amplification factor of a transistor corresponds to
Correct Answer
(B) the current gain of CB amplifier
[#84] A diode which resembles a voltage variable capacitor is known as
Correct Answer
(D) Varactor diode
[#85] Find the wrong statement: specific heat of a material is
Correct Answer
(C) extrinsic property