In the circuit shown below, the voltage appearing across the diode D… | NEET 2026

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P-N Junction Diode

In the circuit shown below, the voltage appearing across the diode D will be of the form:

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Answer: (d)

The diode's cathode faces the source's upper terminal and its anode faces $R$ .
Positive half cycle: the diode is reverse biased, no current flows, so the whole input appears across it: $v_D = v_i$ .
Negative half cycle: the diode is forward biased (ideal), so $v_D = 0$ .
$v_D$ shows only the positive half cycles with gaps between them. So the answer is (d).

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