MHT CET202616 April 2026Evening ShiftPhysicsElectromagnetic InductionActual
In the given circuit, if dI/dt = -1 A/s then the value of V_ AB at this instant will be
Options
- A30 V
- B20 V
- C10 V
- D15 V
Correct answer
D. 15 V
Step-by-step solution
Applying Kirchhoff's Voltage Law (KVL) from point A to point B: V_A - IR - L dI dt - V_ battery = V_B Given: I = 2 A R = 6 L = 3 H dI dt = -1 A/s V_ battery = 6 V (Moving from left to right along the bottom wire, the path goes from the positive to the negative terminal, so it is a potential drop) Substituting the values into the KVL equation: V_A - (2)(6) - (3)(-1) - 6 = V_B V_A - 12 + 3 - 6 = V_B V_A - 15 = V_B V_ AB = V_A - V_B = 15 V Answer: 15 V