Question:

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

NEET (UG) - 2024
NEET (UG)

Updated On: Dec 9, 2024

8 mA
4 mA
0.4 A
4 A

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The Correct Option is A

Solution and Explanation

Ignoring power loss, power in primary = power in secondary. Power (P) = VI Primary voltage ( $V_p$ ) = 220 V Secondary voltage ( $V_s$ ) = 11000 V Power (P) = 88 W Secondary current ( $I_s$ ) = ?

88 = 11000

$\implies i = \frac{88}{11 \times 10^3} = 8 \times 10^{-3} \text{ A}$

$\implies i = 8 \text{ mA}$

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(A)	1 mol of H₂O to O₂	(I)	3F
(B)	1 mol of MnO^-₄ to Mn²⁺	(II)	2F
(C)	1.5 mol of Ca from molten CaCl₂	(III)	1F
(D)	1 mol of FeO to Fe₂O₃	(IV)	5F

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

The Correct Option is A

Solution and Explanation

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