Time Left - 30:00 mins

Class XII Physics Semiconductors 6

Attempt now to get your rank among 960 students!

Question 1

Which of the following is not true of coupling capacitor?

Question 2

In a common emitter amplifier circuit using an n-p-n transistor, the phase difference between the input and the output voltages will be:

Question 3

What is true about gain of the LC oscillator at the start?

Question 4

What is true about Q-point of the transistor amplifier?

Question 5

A diode is operating in reverse region and has reverse saturation current is 10^-16 A. On reading ,the diode current comes out to be 30

, then diode voltage is (Assume non- ideality factor 1)

Question 6

The condition of a semiconductor diode can be determined quickly using

Question 7

A semiconductor exhibits four dispersive mechanism. On the presence of first mechanism only, the mobility is 250 cm² /V- s. On only second mechanism, the mobility would be 500 cm² /V- s. Only third the mobility would be 750 cm² /V- s. Only fourth mobility would be 1000 cm² /V-s. The net mobility is

Question 8

A bipolar transistor is used in common-emitter configuration in a circuit with specifications as –
Collector resistance = 3.4 k

, power supply = 5V, reverse saturation current = 10^-19 A, collector current =1mA

To drive the transistor at the edge of saturation at

, positive increment in

960 attempts
8 upvotes
16 comments

Tags :

Oct 30JEE & BITSAT