JEE PYQ: Current Electricity Question 29
Question 29 - 2020 (07 Jan 2020 Shift 2)
In the figure, potential difference between A and B is:
[Circuit with $10,\text{k}\Omega$ resistors, diode, and 30 V source]
(1) 10 V
(2) 5 V
(3) 15 V
(4) zero
Show Answer
Answer: (1)
Solution
The circuit has two $10,\text{k}\Omega$ resistances in parallel combination to $5,\text{k}\Omega$. Diode is in forward bias, behaving as conducting wire. $V_A - V_B = \frac{30}{5+10} \times 5 = 10$ V.