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An alternating current of rms value `10 A` is passed through a `12 Omega`. resistor. The maximum potential difference across the resistor

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

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Same current is flowing in two alternating circuits. The first circuit contains only inductance and the other contains only a capacitor. If the frequency of the emf of AC is increased, the effect on the value of the

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An inductance and a resistance are connected in series with an AC potential. In this

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An AC voltage is applied to a resistance R and an inductor L in series. If R and the inductive reactance are both equal to `3Omega`, the phase difference (in rad) between the applied voltage and the current in the circuit is

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

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In a circuit containing R and L , as the frequency of the impressed AC increases, the impedance of the

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When an AC voltage is applied to an L-C-R circuit,

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In a L-C-R series circuit, the potential difference between the terminals of the inductance is 60 V, between the terminals of the capacitor is 30 V and that across the resistance is 40 V. Then, supply voltage will be equal to

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An L-C-R series circuit, connected to a source E, is at resonance.

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A sinusoidal voltage of peak value `300 V` and an angular frequency `omega = 400 rads^(-1)` is applied to series L-C-R circuit, in which `R=3Omega, L = 20 mH and C = 625muF`. The peak current in the circuit

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In an L-C-R circuit if impedance is `sqrt2` times of resistance, then find phase

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An L-C-R circuit contains `R=50 Omega, L=1 mH and C = 0.1 muF`. The impedance of the circuit will be minimum for a frequency

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

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In an L-C-R series AC circuit, if `omega_0` is the resonant angular frequency, then the quality factor (Q-factor) is given

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

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In an AC circuit the emf `(e)` and the current `(i)` at any instant are given respectively by, `e =E_0 sin omega t and i = I_0 sin (omegat-phi)` The average power in the circuit over one cycle of AC

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`110 K_(rms)` is applied across a series circuit having resistance `11 Omega` and impedance `22Omega`. The power consumed

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AC generator is used

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The selectivity of a series L-C-R `AC` circuit is large,

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The core of a transformer is laminated

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The transformation ratio in the step-up transformer

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A step-up transformer operates on a 230 V line and supplies a current of 2 A. The ratio of primary and secondary windings is 1 : 25. The primary current

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A transformer has 1500 turns in the primary coil and 1125 turns in the secondary coil. If the voltage in the primary coil is `200 V`, then the voltage in the secondary coil

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