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MHT CET202520 Apr 2025Morning ShiftPhysicsCurrent ElectricityActual

The potential difference (V_A-V_B ) between the points A and B in the given figure is

Options

  1. A6 V
  2. B-3 ~V
  3. C9 V
  4. D3 V

Correct answer

C. 9 V

Step-by-step solution

The potential difference V_A - V_B is determined by summing potential changes along a path from A to B, accounting for voltage drops across circuit elements. Following the current direction, the potential drops 2 2 = 4 ; V across the 2 resistor, yielding V_A - 4 ; V . Traversing the 3 ; V battery from positive to negative terminal adds a 3 ; V drop, giving V_A - 7 ; V . The current through the 1 resistor causes a further drop of 2 1 = 2 ; V , resulting in V_A - 9 ; V at point B. Thus, V_B = V_A - 9 ; V and V_A - V_

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