A transformer with efficiency `80%` works at `4 kW` and `100 V`. If the secondary voltage is `200 V`, then the primary and secondary currents are respectivelyA. 40A, 16 AB. 16 A, 40 AC. 20 A, 40 AD. 40 A, 20 A

A transformer with efficiency `80%` works at `4 kW` and `100 V`. If th

1.	A transformer with efficiency `80%` works at `4 kW` and `100 V`. If the secondary voltage is `200 V`, then the primary and secondary currents are respectivelyA. 40A, 16 AB. 16 A, 40 AC. 20 A, 40 AD. 40 A, 20 A
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A transformer with efficiency `80%` works at `4 kW` and `100 V`. If the secondary voltage is `200 V`, then the primary and secondary currents are respectivelyA. 40A, 16 AB. 16 A, 40 AC. 20 A, 40 AD. 40 A, 20 A

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