Electronics and Communication Engineering - Analog Electronics

31.

Assertion (A): In class A amplifier the distortion is minimum

Reason (R): In class A amplifier collector current exists for 360° of input cycle

Both A and R are correct and R is correct explanation for A
Both A and R are correct but R is not correct explanation for A
A is correct R is wrong
A is wrong R is correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.

32.

Assertion (A): In a differential amplifier the current through common emitter resistor is called tail current

Reason (R): CMRR of an op-amp indicates how a differential signal amplified

Both A and R are correct and R is correct explanation for A
Both A and R are correct but R is not correct explanation for A
A is correct R is wrong
A is wrong R is correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.

33.
Quartz crystal has
very small Q
small Q
very high Q
Q less than 1
Answer: Option
Explanation:
No answer description is available. Let's discuss.

34.
The current ICBO
increases with increases in temperature
is normally greater for silicon transistor than germanium transistors
mainly depends on the emitter base junction bias
depends largely on the emitter doping
Answer: Option
Explanation:
No answer description is available. Let's discuss.

35.

Assertion (A): In a push pull circuit each transistor stays in the active region for one half cycle

Reason (R): A push pull amplifier has low distortion

Both A and R are correct and R is correct explanation for A
Both A and R are correct but R is not correct explanation for A
A is correct R is wrong
A is wrong R is correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.