Physics

Ideal Transformer Calculator

Find secondary voltage and current from the turns ratio.

Calculated Output

Secondary voltage (V) 23

Secondary current (A) 10

Formula: V_s/V_p = N_s/N_p

Step-by-Step Breakdown

1. Values used:

2. Primary voltage = 230 V

3. Primary turns = 1,000

4. Secondary turns = 100

5. Primary current = 1 A

7. Secondary voltage = 23V

8. Secondary current = 10A

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The math behind it

V_s/V_p = N_s/N_p, and current scales inversely so that V_p·I_p = V_s·I_s.

230 V, 1000:100 turns → 23 V secondary at 10 A.

Does power change?

No — an ideal transformer conserves power; real ones lose a little to heat.