The figure below shows a circuit for charging a 12-V battery. If Vs is a sinusoid with 24-V peak amplitude, the fraction of each cycle during which the diode conducts is(a) One quarter of a cycle(b) One-third of a cycle(c) One half of the cycle(d) Three quarters of a cycleI had been asked this question by my college director while I was bunking the class.My question is taken from The Ideal Diode in chapter Diodes of Electronic Devices & Circuits

The figure below shows a circuit for charging a 12-V battery. If Vs is

1.	The figure below shows a circuit for charging a 12-V battery. If Vs is a sinusoid with 24-V peak amplitude, the fraction of each cycle during which the diode conducts is(a) One quarter of a cycle(b) One-third of a cycle(c) One half of the cycle(d) Three quarters of a cycleI had been asked this question by my college director while I was bunking the class.My question is taken from The Ideal Diode in chapter Diodes of Electronic Devices & Circuits
Answer» RIGHT OPTION is (b) One-third of a cycle For explanation I would SAY: For one half of the cycle the diode CONDUCTS when 24 COS(Θ) = 12 or Θ is 600. Hence for a complete cycle the diode does not conducts for 2Θ or 1200. Hence the diode does not conducts for a third of a cycle.

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