A transformer has 490 turns on its primary. An AC source supplies 120 Vrms on the...

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Question

A transformer has 490 turns on its primary. An AC source supplies 120 Vrms on the...

A transformer has 490 turns on its primary. An AC source supplies 120 V_rms on the primary and the transformer delivers 9.0 V on its secondary. How many turns are on the secondary?

Consider again the transformer described in the problem above. If 25 mA of current is going into the primary, what current is being drawn at the secondary?

Please explain/show your work!

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Answer 1

Answer #1

A)

From transformation ratio

Ns = Vs Np/Vp

Ns = 9 x 490/120 = 36

====

B)

Is = Ip Np/Ns

Is = 25 x 490/36 = 340 mA

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Answer 2

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A transformer has 490 turns on its primary. An AC source supplies 120 Vrms on the...

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Homework Answers

Add Answer to: A transformer has 490 turns on its primary. An AC source supplies 120 Vrms on the...

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A transformer has 490 turns on its primary. An AC source supplies 120 Vrms on the...