Appeared in: 2026 (2 sets)
When the forward bias voltage in a semiconductor diode is changed from $0\cdot8\text{ V}$ to $1\cdot0\text{ V}$, the forward current changes by $2\cdot0\text{ mA}$. The forward bias resistance of the diode will be :
(A) $200\text{ }\Omega$
(B) $175\text{ }\Omega$
(C) $100\text{ }\Omega$
(D) $125\text{ }\Omega$