# physics prob.

An ideal transformer has 50 turns in its primary coil and 250 turns in its secondary coil. 12 V is connected to the primary.

a)find the voltage across the secondary coil.

b) find the current in a 10-ohms device connected to the secondary.

c) find the power supplied to the primary.

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1. The turns ratio N2/N1 equals the factor by which the voltage increases: V2/V1.

V2/R is the secondary current
V2*I2 is the secondary power, and it equals the primary power.

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posted by drwls
2. secondary coil 60v

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posted by Racheal
3. vs=VP*ns
50vs=250*12
50vs=3000÷50
vs=60v

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posted by Racheal
4. Just trying

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posted by Racheal

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