Figure below shows a circuit for charging a 12-V battery. If Vs is a sinusoid with 24-V peak amplitude, find the fraction of each cycle during which the diode conducts. Also, find the peak value of the diode current and the maximum reverse-bias voltage that appears across the diode. Assume ideal models for the diodes. US 100 Ω ww (a) 12 V -24 V 12 V AA. 201 (b)