A diode connected to an external resistance and an e.m.f. Assuming that the barrier potential developed in diode is 0.5 V. What will be the value of current in the circuit in milliampere?

Question

A diode connected to an external resistance and an e.m.f. Assuming that the barrier potential developed in diode is 0.5 V. What will be the value of current in the circuit in milliampere? (A) 40 mA (B) 4 mA (C) 0.4 mA (D) 400 mA

Tardigrade Admin · Accepted Answer

Effective voltage in the circuit V =4.5-0.5=4 V Current in the circuit I=(V/R)=(4/100)=0.04 A I=0.04 A =40 mA

Q. A diode connected to an external resistance and an e.m.f. Assuming that the barrier potential developed in diode is $0.5 V$ . What will be the value of current in the circuit in milliampere?

40 mA

4 mA

0.4 mA

400 mA

Effective voltage in the circuit $V = 4.5 - 0.5 = 4 V$
Current in the circuit $I = \frac{V}{R} = \frac{4}{100} = 0.04 A$
$I = 0.04 A = 40 m A$

Q. A diode connected to an external resistance and an e.m.f. Assuming that the barrier potential developed in diode is 0.5V. What will be the value of current in the circuit in milliampere?