The Figure shows a parallel L-C-R circuit connected to a variable frequency 200V source- L - 5 H- C- 80 -F and R-40 - What is the ems current in the circuit at resonance-

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Standard XII

Physics

Impedance in RLC Circuit

The Figure sh...

Question

The Figure shows a parallel $L - C - R$ circuit connected to a variable frequency 200V source. L = 5 H, C= 80 $μ$ F and R=40 $Ω$ . What is the ems current in the circuit at resonance?

5 A

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10 A

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\frac{5}{\sqrt{2}}

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5 \sqrt{2} A

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Solution

The correct option is A 5 A
Answer: A
At resonance L and C wont draw any current from the source, energy stored in these two ( and hence the current charge) would oscillate between the two. ONly the resistance would draw a current from the source whose rms value is $\frac{200}{40} = 5 A .$

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The Figure shows a parallel L−C−R circuit connected to a variable frequency 200V source. L = 5 H, C= 80 μF and R=40 Ω. What is the ems current in the circuit at resonance?

The correct option is A 5 AAnswer: AAt resonance L and C wont draw any current from the source, energy stored in these two ( and hence the current charge) would oscillate between the two. ONly the resistance would draw a current from the source whose rms value is 20040=5 A.

The Figure shows a parallel $L - C - R$ circuit connected to a variable frequency 200V source. L = 5 H, C= 80 $μ$ F and R=40 $Ω$ . What is the ems current in the circuit at resonance?

The correct option is A 5 A
Answer: A
At resonance L and C wont draw any current from the source, energy stored in these two ( and hence the current charge) would oscillate between the two. ONly the resistance would draw a current from the source whose rms value is $\frac{200}{40} = 5 A .$