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Suppose the initial charge on the capacitor in Exercise 7.7 is
Physics Part-I
Physics Part-I

Class 12

NCERT

Publisher:
NCERT
Subject:
Physics
1

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Chapter 2: Electrostatic Potential and Capacitance

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Chapter 3: Current Electricity

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Chapter 4: Moving Charges and Magnetism

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Chapter 5: Magnetism and Matter

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Chapter 6: Electromagnetic Induction

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7

Chapter 7: Alternating Current

37 questions

Q1
A charged 30 F capacitor is connected to a 27 mH inductor. What is the angular frequency of free oscillations of the circuit?
Q2
Suppose the initial charge on the capacitor in Exercise 7.7 is 6 mC. What is the total energy stored in the circuit initially? What is the total energy at later time?
Q3
A series LCR circuit with R = 20  , L = 1.5 H and C = 35 F is connected to a variable-frequency 200 V ac supply. When the frequency of the supply equals the natural frequency of the circuit, what is the average power transferred to the circuit in one complete cycle?
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Chapter 8: Electromagnetic Waves

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Suppose the initial charge on the capacitor in Exercise 7.7 is 6 mC. What is the total energy stored in the circuit initially? What is the total energy at later time?

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Physics Part-I (NCERT)

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Suppose the initial charge on the capacitor in Exercise 7.7 is 6 mC. What is the total energy stored in the circuit initially? What is the total energy at later time?
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Initially, energy is stored in the capacitor and is given by

The initial energy stored in the capacitor is shared by the inductor during oscillations of the circuit, but the total energy remains the same even at a later time.
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A charged 30 F capacitor is connected to a 27 mH inductor. What is the angular frequency of free oscillations of the circuit?
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Suppose the initial charge on the capacitor in Exercise 7.7 is 6 mC. What is the total energy stored in the circuit initially? What is the total energy at later time?
Q3
A series LCR circuit with R = 20  , L = 1.5 H and C = 35 F is connected to a variable-frequency 200 V ac supply. When the frequency of the supply equals the natural frequency of the circuit, what is the average power transferred to the circuit in one complete cycle?
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Question Text
Suppose the initial charge on the capacitor in Exercise 7.7 is 6 mC. What is the total energy stored in the circuit initially? What is the total energy at later time?
TopicAlternating Current
SubjectPhysics
ClassClass 12
Answer TypeText solution:1
Upvotes31