Electromagnetic Induction and Transformers Calculate the ratio of N s /N p for e

ID: 1503353 • Letter: E

Question

Electromagnetic Induction and Transformers

Calculate the ratio of Ns/Np for each combination of coils. Then calculate Vs/Vp for each combination of coils. Compare the ratio to each other.

Secondary Voltage (not connected to AC source)

Primary Voltage Secondary Voltage

Air 17.98 0.902

Bar alone 20.35 3.329

U-Shape 21.02 7.71

Full Loop 21.78 19.04

Primary Voltage Secondary Voltage

200 Primary 400 Secondary 21.32 36.42

400 Primary 200 Secondary 21.81 9.56

200 Primary 800 Secondary 21.34 72.9

800 Primary 200 Secondary 21.89 4.76

400 Primary 800 Secondary 21.73 38.42

800 Primary 400 Secondary 21.89 9.40

Vs/Vp = Ns/Np

Vs = Vp ( Ns/Np)

Vs = 21.32 ( 400/200) = 42.64 V

Vs = 21.81 ( 200/400) = 10.905V

Vs = 21.34 ( 800/200) = 85.36V

Vs = 21.89 ( 200/800) = 5.47 V

Vs = 21.73( 800/400) = 43.46 V

Vs = 21.89 ( 400/800) = 10.94 V

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