In a step-up transformer, the ratio of turns of primary to secondary is 1 : 10 and the primary voltage is 230 V . If the load current is 2 A , then the current in the primary is

Question

In a step-up transformer, the ratio of turns of primary to secondary is 1 : 10 and the primary voltage is 230 V . If the load current is 2 A , then the current in the primary is, 20 A, 10 A, 2 A, 1 A

MARKS App · Accepted Answer

N p N s = 1 1 0 V p = 230 V , I s = 2 A , I p I s = N s N p I p 2 = 1 0 1 ⇒ I p = 20 A ​

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