Published by:
CGP EDU Academic Team
Published on: September 12, 2026
For series 
circuit, wrong statement is
A
Applied e.m.f. and potential difference across resistance are in same phase
B
Applied e.m.f. and potential difference at inductor coil have phase difference of 
C
Potential difference at capacitor and inductor have phase difference of 
D
Potential difference across resistance and capacitor have phase difference of 
Text Solution
Verified by ExpertsThe correct answer is:
C
In an LCR circuit:
- The applied e.m.f. and the potential difference across the resistance are in phase. This is option A and is correct.
- The potential difference across the inductor lags the current by 90 degrees (or \frac{\pi}{2} radians), making option B correct.
- For a capacitor, the voltage lags the current by 90 degrees. Hence, the potential difference between the capacitor and inductor actually has a phase difference of 180 degrees (or \pi radians), which contradicts option C because it suggests a smaller phase difference.
- The potential difference across the resistor and capacitor has a phase difference of 90 degrees (or \frac{\pi}{2} radians) which is accurate for option D.
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