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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

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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

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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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Find the time required for 50Hz alternating current to change its value from zero to rms

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If `E=20 sin (100pit)` volt then calculate value of E at `t=1/600

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A periodic voltage wave form has been shown in fig. Determine. (a) Frequency of the wave form. (b) Average

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Explain why A.C. is more dangerous than D.C.

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If a direct current of value a ampere is superimposed on an alternating current `I = b sinomegat` flowing through a wire, what is the effective value of the resulting current in the circuit

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The Equation of current in AC circuit is `I=4sin[100pi+pi/3] A` . Calculate. (i) RMS Value (ii) Peak Value (iii) Frequency (iv) Initial phase (v) Current at `t =

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If `I=I_0sin omegat, E = E_0 cos [omegat+pi/3]`. Calculate phase difference between `E and

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If `E=500 sin (100 pit)` volt then calculate time taken to reach from zero to

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If Phase Difference between `E and I` is `pi/4 and f = 50 Hz` then calculate time

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Show that average heat produced during a cycle of AC is same as produced by DC with `I =

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What is the inductive reactance of a coil if the current through it is 20 mA and voltage across it is 100

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