Correct Answer : Option (B) : (3/8) ms
Explanation : Ton = (1/4) TT = 1/2kHz = 0.5 msTon = T/4Therefore, Toff = T – Ton = T – T/4 = 3T/4 = 3/8 msec.
Correct Answer : both inverter and rectifier
Explanation : Rectifier to converter the dc from the battery to ac. Inverter to charge the battery from mains.
Correct Answer : smaller conductor size
Explanation : The conductor size is smaller as there is no sink effect, and the whole conductor is utilized for transmitting power.
Correct Answer : Chopper
Explanation : SMPS (Switching mode power supply) are based on the chopper principle. The output dc voltage is controlled by varying the duty cycle of the chopper circuit.