Kelvi

A step-down transformer connected to an AC mains supply of $220$ V is made to operate at $11$ V, $44$ W lamp. Ignoring power losses in the transformer, what is the current in the primary circuit?

medium

Alternating Current

2021

physics

0.2 A

0.4 A

2 A

4 A

Explanation

To solve this problem, we need to use the concept of a transformer and the power relation in an electrical circuit. $\\$ Given: $\\$ • The primary voltage $V_p = 220$ V $\\$ • The secondary voltage $V_s = 11$

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A step-down transformer connected to an AC mains supply of 220 220 220 V is made to operate at 11 11 11 V, 44 44 44 W lamp. Ignoring power losses in the transformer, what is the current in the primary circuit?

Explanation

Our AI powered practice platform can help you achieve your doctor dream.

A step-down transformer connected to an AC mains supply of $220$ V is made to operate at $11$ V, $44$ W lamp. Ignoring power losses in the transformer, what is the current in the primary circuit?