Chapter 4: Electromagnetism Physics Mcqs for High School - Grade 10

Q.  A transformer is designed to convert the voltage from 240 V a.c mains to 12 V, and has 4000 turns on its primary coil. If it is 100% efficient, and the current in the secondary coil was 0.4 A then the current in the primary coil should be

a. 0.08 A
b. 0.05 A
c. 0.02 A
d. 0.01 A


ANSWER: See Answer
 
No explanation is available for this question!
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