Electronics and Communication Engineering - Electronic Devices and Circuits

36.
When P-N junction is in forward bias, by increasing the battery voltage
current through P-N junction reduces
current through P-N junction increases
circuit resistance increases
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

37.
A semiconductor in its purest form called
intrinsic semiconductor
extrinsic semiconductor
P-type semiconductor
N-type semiconductor
Answer: Option
Explanation:
No answer description is available. Let's discuss.

38.
Which of the following is an active device?
Transformer
Silicon controlled rectifier
Electric bulb
Loudspeaker
Answer: Option
Explanation:
No answer description is available. Let's discuss.

39.

Assertion (A): The forward dynamic resistance of p-n diode varies inversely with current.

Reason (R): The forward dynamic resistance of p-n diode varies with the operating voltage.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not a correct explanation of A
A is true but R is false
A is false but R is true
Answer: Option
Explanation:
No answer description is available. Let's discuss.

40.
If E (i.e., available energy state) = EF(i.e., Fermi level), then probability that state E will be occupied is 0.5 for any temperature T.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.