Answer to Question #121704 in Electricity and Magnetism for Yasmin

Question #121704
A transfirmer being used to operate a 6V 48W heater from 240V a.c. supply. Given that Ns=100
Calculate the number of turns in primary coil .
1
Expert's answer
2020-06-11T10:34:20-0400

As per the given question,

Operating voltage = 6V,

Power = 48W

Supply voltage = 240V AC

Ns=100

We know that (E1E2)=(N1N2)(\frac{E_1}{E_2})=(\frac{N_1}{N_2})


N2=E2×N1E1\Rightarrow N_2=\frac{E_2\times N_1}{E_1}

N2=240×1006=4000\Rightarrow N_2=\frac{240\times 100}{6}=4000

Hence, total number of turns in the coil is 4000.


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