A series LCR circuit is connected across an a.c. source of variable angular frequency $' \omega'$. Plot a graph showing variation of current ‘i’ as a function of $' \omega'$ for two resistances $R_1$ and $R2 (R_1 > R_2).$
Answer the following questions using this graph:
Answer the following questions using this graph:
- In which case is the resonance sharper and why?
- In which case is the power dissipation more and why?
CBSE OUTSIDE DELHI - SET 2 PATNA 2015
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- Sharper for $R = R_2$
- More power dissipation for $\text{R} = \text{R}_{2}$
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