The primary and the secondary coils of a transformer contain 10 and 100 turns, respectively. The primary coil is connected to battery that supplies a constant voltage of 1.5 volts. The voltage across the secondary coil is

1.5V

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0.15V

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0.015 V

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15V

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Solution

The correct option is A 15V
Number of turns in primary coil $N_{p} = 10$
Number of turns in secondary coil $N_{s} = 100$
Voltage in primary coil $V_{p} = 1.5 V$
Voltage in secondary coil $V_{s} = \frac{N_{s}}{N_{p}} V_{p}$
$⟹ V_{s} = \frac{100}{10} \times 1.5 = 15 V$
Correct answer is option D.

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The primary and the secondary coils of a transformer contain 10 and 100 turns, respectively. The primary coil is connected to battery that supplies a constant voltage of 1.5 volts. The voltage across the secondary coil is

The correct option is A 15VNumber of turns in primary coil Np=10Number of turns in secondary coil Ns=100Voltage in primary coil Vp=1.5 VVoltage in secondary coil Vs=NsNpVp⟹ Vs=10010×1.5=15 VCorrect answer is option D.

The correct option is A 15V
Number of turns in primary coil $N_{p} = 10$
Number of turns in secondary coil $N_{s} = 100$
Voltage in primary coil $V_{p} = 1.5 V$
Voltage in secondary coil $V_{s} = \frac{N_{s}}{N_{p}} V_{p}$
$⟹ V_{s} = \frac{100}{10} \times 1.5 = 15 V$
Correct answer is option D.