a 220 volts input is supplied to a transformer the output circuit draws a current of 2.0 amp at 440 volts if the efficiency of transformer is 80 the current drawn by the primary winding of the transformer is ?
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5.0 A
Efficiency is defined as the ratio of output power and input power
n% = P out / P in * 100 = Vs is/ Vp ip *100
80 = (2*440/ 220* ip) * 100
ip = 5A
Efficiency is defined as the ratio of output power and input power
n% = P out / P in * 100 = Vs is/ Vp ip *100
80 = (2*440/ 220* ip) * 100
ip = 5A
Answered by
3
Answer:
n% = Pout/Pin × 100
= VsIs/VpIp × 100
80 = 2 × 440/220 × Ip × 100
IP = 5A Ans......
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