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Some current is flowing in the milli amm...

Some current is flowing in the milli ammeter in the following circuit. If the applied voltage is increased from 2 V to 4 V, then

A

the p.d. across the resistance R decreases

B

the p.d. across the diode increases

C

the p.d. across the diode remains constant

D

the current in the milliammeter is doubled

Text Solution

Verified by Experts

The correct Answer is:
C
The barrier P.D. 0.3V or 0.6V across the diode remains constant.
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