A transformer has a primary coil with 500 turns and a secondary coil with 2500 turns. When the voltage input to the primary coil is 120V, the output is

Assessment: JAMB UTME - Physics - 1985 Subject: Physics

Question 1 Report

6000V

600V

240V

60V

24V

Answer Details

For transformers,

\frac{V_{p}}{V_{s}}

=

\frac{N_{p}}{N_{s}}

=

\frac{I_{p}}{I_{s}}

$\frac{500}{2500}$ = $\frac{120}{V_{s}}$

Vs = 600v

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Current Electricity

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