Electronics and Communication Engineering - Power Electronics

16. 

In a single phase half wave ac regulator feeding a resistive load, the rms load current

A. is always positive
B. may be positive or negative
C. is always negative
D. can be even zero

Answer: Option A

Explanation:

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17. 

Which of the following is correct for a BJT?

A.
B.
C.
D.

Answer: Option A

Explanation:

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18. 

In a bridge inverter with single pulse width modulation

A. the output frequency is equal to frequency of reference signal
B. the output frequency is equal to frequency of control signal
C. either (a) or (b)
D. neither (a) nor (b)

Answer: Option A

Explanation:

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19. 

In a modified series inverter with two inductors and two capacitors, the load current

A. has 2 parallel paths
B. has only one parallel path
C. can have three parallel paths
D. has four parallel paths

Answer: Option A

Explanation:

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20. 

The number of layers in a Shockley diode are

A. 2
B. 3
C. 4
D. 2 or 3

Answer: Option C

Explanation:

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