A transformer has 50 turns in primary and 100 turns in secondary. If the primary is connected to 220 V d.c. supply, then the voltage across the secondary will be :

440 V

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220 V

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110 V

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0 V

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Solution

The correct option is A 440 V
Given $N_{1} = 50$ turns
$N_{2} = 100$ turns
$V_{1} = 220$ volts.
For transformer we know that
$\frac{N_{1}}{N_{2}} = \frac{V_{1}}{V_{2}}$
$o r, \frac{50}{100} = \frac{220}{V_{2}}$
$o r, V_{2} = 440$ volts

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A transformer has 50 turns in primary and 100 turns in secondary. If the primary is connected to 220 V d.c. supply, then the voltage across the secondary will be :

The correct option is A 440 VGiven N1=50 turns N2=100 turns V1=220 volts.For transformer we know that N1N2=V1V2or, 50100=220V2or, V2=440 volts

The correct option is A 440 V
Given $N_{1} = 50$ turns
$N_{2} = 100$ turns
$V_{1} = 220$ volts.
For transformer we know that
$\frac{N_{1}}{N_{2}} = \frac{V_{1}}{V_{2}}$
$o r, \frac{50}{100} = \frac{220}{V_{2}}$
$o r, V_{2} = 440$ volts