Two resistors are connected in a series across 5V rms source of alternating potential. The potential difference across 6Ω resistor is3V . If R is replaced by a pure inductor L of such magnitude that current remains same, then the potential difference across L is
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a
1V
b
2V
c
3V
d
4V
answer is D.
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Detailed Solution
⇒Vms across 6Ω=3V ⇒3=6IV ∴IV=0.5A IV=12=562+XL 2,XL=8ΩNow, VL=IV. XL=12×8=4V