Q: In a reverse biased diode , when the applied voltage changes by 1 V, the current is found to change by 0.5 μA. the reverse bias resistance of the diode is
(a) 2 × 105 Ω
(b) 2 × 106 Ω
(c) 200 Ω
(d) 2 Ω
Click to See Answer :
Ans: (b)
Sol: Resistance of diode = ΔV/(Δ I)
= 1/(0.5 × 10-6)
= 2 × 106 Ω