When a $6 V$ battery is connected across the primary of a transformer with a turns ratio of $8$ , the secondary voltage is

0 V

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6 V

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48 V

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0.75 V

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Solution

The correct option is A $0 V$
Transformer does not work on DC. Direct current have a variable magnetic field induced if fed through the primary winding of transformer. Thus, only a constant magnetic field will act o secondary and shall not induce any voltage across the terminals of the same. So, it works on AC circuits only.

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When a 6V battery is connected across the primary of a transformer with a turns ratio of 8, the secondary voltage is

When a $6 V$ battery is connected across the primary of a transformer with a turns ratio of $8$ , the secondary voltage is