Question on: WAEC Physics - 1994
A transformer with 5500 turns in its primary winding is used between a 240V a.c supply and 120V kettle. Calculate the number of turns in the secondary winding
A
11000
B
2750
C
460
D
550
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Correct Option: B
(\frac{E_s}{E_p} = \frac{N_s}{N_p} ; \frac{120}{240}= \frac{N_s}{5500} thus N_s)=2750
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