Question
Physics Question on Alternating current
A step-down transformer connected to an ac mains supply of 220 V is made to operate at 11 V, 44 W lamp. Ignoring power losses in the transformer, what is the current in the primary circuit
A
4 A
B
0.2 A
C
0.4 A
D
2 A
Answer
0.2 A
Explanation
Solution
The correct answer is option (B): 0.2 A