JEE Main 2019 — Alternating Current Question with Solution
From: JEE Main 2019 (Online) 10th April Morning Slot
Question
A transformer consisting of 300 turns in the
primary and 150 turns in the secondary gives
output power of 2.2 kW. If the current in the
secondary coil is 10A, then the input voltage
and current in the primary coil are :
Choose an option
Show full solutionCorrect option: C
Correct answer
C440 V and 5A
Step-by-step explanation
Given NP = 300, Ns = 150, P0 = 2200W
Is = 10 A
P0 = V0I0 2200 = V0 × 10 V0 = 220 V
Also, P0 = ViIi
Is = 10 A
P0 = V0I0 2200 = V0 × 10 V0 = 220 V
Also, P0 = ViIi
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