Q137 / 150 · MHT CET 2025 (22 Apr Shift 1) · Physics

If a centre tap transformer is used with two p-n junction diodes for full wave rectification then output voltage of rectifier with respect to each diode is (secondary voltage of transformer $=V_s$ )

  • A
    $2 \mathrm{~V}_{\mathrm{s}}$
  • B
    $\left(\frac{2}{3}\right) V_s$
  • Correct answer
    C
    $\left(\frac{1}{2}\right) V_s$
  • D
    $\left(\frac{3}{2}\right) V_s$

Solution

A center-tap full-wave rectifier employs a transformer with a center-tapped secondary winding where the total voltage $V_s$ is equally divided, yielding $\frac{V_s}{2}$ from center tap to each end.

Each diode rectifies the voltage across its respective half-winding, producing an output voltage of $\frac{V_s}{2}$ for each.

Final Answer: $\boxed{\text{C}}$

Hence, the correct answer is option: 'C'.

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