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In the LCR circuit shown in Fig , the ac driving voltage is `v = V_m sin ωt`. Describe subsequent motion of
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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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The reactance of capacitor is 20 ohm. What does it
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What will be its reactance if frequency of AC is
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What will be its, reactance when connected in DC circuit? What is its
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A capacitor of 50 pF is connected to an a.c. source of frequency 1kHz Calculate its
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In given circuit applied voltage `V = 50sqrt2 sin 100pit` volt and ammeter reading is 2A then calculate value of
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A 50 W, 100 V lamp is to be connected to an AC mains of 200 V, 50 Hz. What capacitance is essential to be put in series with the lamp
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Calculate the impedance of the circuit shown in the
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