Question

The equivalent resistance between the points A and B if $V_{A} > V_{B}$ is

• A. $10\Omega$
• B. 20$\Omega$
• C. 30$\Omega$
• D. 15$\Omega$

Answer 1

Answer: (A)

$10\Omega$

Answer 2

: when $V_{A} > V_{B}$the diode gets forward biased and offers no resistance

$\therefore R = \frac{20 \times 20}{20 + 20} = 10\Omega$