In the middle of the depletion layer of a reverse-biased $P N$ junction, the
A
Potential is zero
B
Electric field is zero
C
Potential is maximum
D
Electric field is maximum
[AIEEE 2003]
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D
Electric field is maximum
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Plate voltage of a triode is increased from $200 V$ to $225 V$. To maintain the plate current, change in grid voltage from $5 V$ to $5.75 V$ is needed. The amplification factor is
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