MEDIUM
12th ICSE
IMPORTANT
Earn 100

An alternating emf V is applied across a series L-C-R circuit. The peak values of the alternating voltage developed across the three components are marked in the figure. Determine the peak value of the applied emf and the phase difference between the applied emf and the current in the circuit.

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Important Questions on Alternating Current

MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 55

The main-supply voltage of the alternating-current circuit shown in the figure is constant, but its frequency f is variable. For what frequency the voltage across the resistance R will be maximum?

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MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 56
200 V AC is applied at the ends of an L-C-R circuit. The circuit consists of an inductive reactance XL=50 Ω, capacitive reactance XC=50 Ω and resistance R=10 Ω. Calculate the impedance of the circuit and also the potential differences across L and across R. What will be the potential difference across L-C?
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 57
A 2 μF capacitor, 100 Ω resistor and 8 H inductor are connected in series with an AC source. What should be the frequency of this source for which the current drawn in the circuit is maximum? If the peak value of emf of the source is 200 V find for maximum current inductive and capacitive reactance in the circuit.
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 57
A 2 μF capacitor, 100 Ω resistor and 8 H inductor are connected in series with an AC source. What should be the frequency of this source for which the current drawn in the circuit is maximum? If the peak value of emf of the source is 200 V find for maximum current total impedance of the circuit.
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 57
A 2 μF capacitor, 100 Ω resistor and 8 H inductor are connected in series with an AC source. What should be the frequency of this source for which the current drawn in the circuit is maximum? If the peak value of emf of the source is 200 V find for maximum current peak current in the circuit.
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 57
A 2 μF capacitor, 100 Ω resistor and 8 H inductor are connected in series with an AC source. What should be the frequency of this source for which the current drawn in the circuit is maximum? If the peak value of emf of the source is 200 V. Find for maximum current phase relation between voltages across inductor and resistor.
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 57
A 2 μF capacitor, 100 Ω resistor and 8 H inductor are connected in series with an AC source. What should be the frequency of this source for which the current drawn in the circuit is maximum? If the peak value of emf of the source is 200 V. Find phase difference between voltages across inductor and capacitor for maximum current.
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 58
A capacitor, a resistor of 5 Ω an inductor of 50 mH are in series with an AC source marked 100 V, 50 Hz. It is found that voltage is in phase with the current. Calculate the capacitance of the capacitor and impedance of the circuit. π=3.14