A transformer has an efficiency of 80 % and works at 10 V and 4 kW . If the secondary voltage is 240 V ,…

A transformer has an efficiency of 80% and works at 10 V and 4 kW. If the secondary voltage is 240 V, then the current in the secondary coil is:
  1. 1.59 A
  2. 13.33 A
  3. 1.33 A
  4. 15.1 A

Solution

Efficiency η=PoutputPinput=ESISEPIP

⇒0.8=240IS4000

⇒IS=3200240=13.33 A

Asked in: JEE Main 2024 (01 Feb Shift 2)

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