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Two identical incandesant light bulbs are connected as shown in figure. when the circuit is an AC voltage source of frequency f, which of the following observations will be

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An LC circuit contains a 20 mH inductor and a `50muF` capacitor with an initial charge of 10 mc. The resistance of the circuit is negligible. At the instant the circuit is closed be t = 0. At what time is the energy stored compeletly

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In the circuit shown below, the ac source has voltage `v = 20 cosomegat` volts with `omega= 2000 `rad/sec.The amplitude of the current will be nearest

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The quality factor of LCR circuit having resistance (R) and inductance (L) at resonance frequency `(omega)` is given

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For high frequency, a capacitor

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The coil of a choke in a

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The power factor of an ac circuit having resistance (R) and inductance (L) connected in series and an angular velocity w

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An inductor of inductance L and resistor of resistance R are joined in series and connected by a source of frequency ω power dissipated in the circuit

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In a LCR circuit capacitance is changed from C to 2C. For the resonant fequency to remain unchanged, the inductance should be change from L

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In an LCR series ac circuit the voltage across each of the components L, C and R is 50 V. The voltage across the LC combination will

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An inductor L and capacitor C are connected in the circuit as shown in fig. The frequency of the power supply is equal to the resonant frequency of the circuit. Which ammeter will read zero

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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In a circuit L, C and R are connected in series with an alternating voltage source of frequency f. The current leads the voltage by `45^0` . The value of c

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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In a series resonant LCR circuit, the voltage across R is 100 V and `R= 1kOmega` with `C =2muF`. The resonant frequency `omega` is 200 rad/s.At resonance the voltage across L

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A coil of inductive reactance `31Omega` has a resistance of `8Omega` . It is placed in series with a condenser of copacitive reactance `25Omega` . The combination is connected to an a.c. source of 110 volt. The power factor of the circuit

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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The diagram shows a capacitor C and resistor R connected in series to an ac source. V1 and V2 are voltmeters and Ais an ammeter, consider the following statements. (1) Readings in A and V2 are always in phase. (2) Reading in V1 is ahead in phase with reading in V2 . (3) Reading in A and V1 are always in phase. Which of these statements are / is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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The reading of ammeter in the circuit shown will

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In the adjoining circuit the voltmeter whose reading will be zero at resonance

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In the adjoining figure the impedance of the circuit will

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Is it

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If `I=2sqrtt` ampere then calculate average and rms values over `t = 2 to 4

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