The barrier potential developed in a diode is 0.5 V, then the value of the current in the circuit shown below is:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → 40 mA
$ΔV$, The potential barrier developed by the coil = 0.5 V [Given]
∴ Electric current = $I = \frac{ΔV}{e}$ [By ohm's law]
where,
R = Resistance in circuit
$I=\frac{4}{100}=40mA$