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Standard XII

Physics

Turns Ratio

In an ideal t...

Question

In an ideal transformer, the voltage and the current in primary coil are $200 V$ and $2 A$ respectively. If the voltage in the secondary coil is $200 V$ , then the value of current in the secondary coil will be

0.2 A

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2 A

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10 A

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20 A

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Solution

The correct option is A $0.2 A$
As the transformer is ideal the power in both coils is conserved
$P_{p} = P_{s}$
$V_{p} I_{p} = V_{s} I_{s}$
$200 \times 2 = 2000 \times I_{s}$
$I_{s} = 0.2 A$

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In an ideal transformer, the voltage and the current in primary coil are 200V and 2A respectively. If the voltage in the secondary coil is 200 V, then the value of current in the secondary coil will be

The correct option is A 0.2 AAs the transformer is ideal the power in both coils is conserved Pp=Ps VpIp=VsIs 200×2=2000×Is Is=0.2 A

In an ideal transformer, the voltage and the current in primary coil are $200 V$ and $2 A$ respectively. If the voltage in the secondary coil is $200 V$ , then the value of current in the secondary coil will be

The correct option is A $0.2 A$
As the transformer is ideal the power in both coils is conserved
$P_{p} = P_{s}$
$V_{p} I_{p} = V_{s} I_{s}$
$200 \times 2 = 2000 \times I_{s}$
$I_{s} = 0.2 A$