A step up transformer is connected to an ac mains supply of 220 V to operate at 11000 V, 88 watt. The current in the secondary circuit, ignoring the power loss in the transformer, is (a) 8 mA (b) 4 mA (c) 0.4 A (d) 4 A

Answer: (a). No power loss: Ps = 88 W at Vs = 11000 V. Is = (88)/(11000) = 8×10⁻³ A So the answer is (a) 8 mA.

A step up transformer is connected to an ac mains supply of 220 V to… | NEET 2024

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AC Generator & Transformer

A step up transformer is connected to an ac mains supply of $220\text{ V}$ to operate at $11000\text{ V},\ 88$ watt. The current in the secondary circuit, ignoring the power loss in the transformer, is

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Answer: (a)

No power loss: $P_s = 88\text{ W}$ at $V_s = 11000\text{ V}$ .
$I_s = \frac{88}{11000} = 8\times10^{-3}\text{ A}$
So the answer is (a) $8\text{ mA}$ .

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