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Electrostatic Potential And Capacitance

Question

In a transformer with transformation ratio 0.1, 220 volt a.c. is fed to primary. What voltage is obtained across the secondary?

Solution

Given,
Transformation ratio = 0.1
Voltage of the primary coil, E_P = 220 V

Now, using the formula,

$\frac{N_{s}}{N_{p}} = \frac{E_{s}}{E_{p}}$

$0.1 = \frac{E_{s}}{220}$

$∴$ "
which is the required voltage across secondary.

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Electrostatic Potential And Capacitance

In a transformer with transformation ratio 0.1, 220 volt a.c. is fed to primary. What voltage is obtained across the secondary?

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