Home » UPSC CAPF » Transformer is used to 1. convert low a.c. voltage to high voltage

Transformer is used to 1. convert low a.c. voltage to high voltage

June 1, 2025 by rawan239

Transformer is used to

1. convert low a.c. voltage to high voltage
2. convert high a.c. voltage to low voltage
3. convert direct current to alternating current
4. regulate the fluctuation of voltage

Select the correct answer using the code given below.

1 only

2 only

1 and 2

3 and 4

This question was previously asked in

UPSC CAPF – 2013

Download PDF Attempt Online

The correct option is C. A transformer is used to convert low a.c. voltage to high voltage and convert high a.c. voltage to low voltage.

Transformers are electrical devices that transfer electrical energy between two or more circuits through electromagnetic induction, typically to change the voltage level. A step-up transformer converts a low AC voltage to a high AC voltage (statement 1), while a step-down transformer converts a high AC voltage to a low AC voltage (statement 2). Transformers only work with alternating current (AC).

Statement 3 is incorrect; converting direct current (DC) to alternating current (AC) is done by an inverter. Statement 4 is incorrect; regulating voltage fluctuations is the function of voltage regulators or stabilizers, although transformers are part of the power distribution system where voltage levels are managed.

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