Recent questions tagged series ac circuits

+2 votes

1 answer

An electric bulb has a rating of 500 W, 100 V. It is used in a circuit having a 200 V supply.

asked Apr 6, 2019 in Class 12 by kratos

+2 votes

1 answer

A coil is connected in series with a pure capacitor. The combination is fed from a 10 V supply of 10,000 Hz.

asked Apr 3, 2019 in Mathematics by kratos

+1 vote

1 answer

A 60 Hz sinusoidal voltage v = 141 sin ω t is applied to a series R-L circuit.

asked Apr 2, 2019 in Mathematics by kratos

+1 vote

1 answer

It is desired to move a small 50 kg space vehicle by a lamp which emits 100 W of blue light (= 4700 ).

asked Mar 25, 2019 in Class 12 by kratos

+2 votes

1 answer

A constant voltage at a frequency of 1 MHz is applied to an inductor in series with a variable capacitor.

asked Mar 21, 2019 in Mathematics by kratos

+1 vote

1 answer

An inductance L, a resistance R and battery B are connected in series with a switch *. The voltages across L and R are VL and VR respectively.

asked Mar 19, 2019 in Class 12 by kratos

+2 votes

1 answer

A coil takes a current of 6 A when connected to a 24-V d.c. supply. To obtain the same current with a 50-Hz a.c.

asked Mar 11, 2019 in Mathematics by kratos

+3 votes

1 answer

An iron-cored choking coil takes 5 A when connected to a 20-V d.c. supply and takes 5 A at 100 V a.c.

asked Mar 5, 2019 in Mathematics by kratos

+3 votes

1 answer

A resistance of 20 ohm, inductance of 0.2 H and capacitance of 150 μF are connected in series

asked Feb 28, 2019 in Mathematics by kratos

+1 vote

1 answer

Combination of capacitor in series and parallel

asked Feb 24, 2019 in JEE by kratos

+3 votes

1 answer

Why do we consider tungsten as suitable material for making the filament of a bulb?

asked Feb 18, 2019 in JEE by kratos

+2 votes

1 answer

Two impedances consist of (resistance of 15 ohms and series-connected inductance of 0.04 H)

asked Feb 16, 2019 in Mathematics by kratos

+3 votes

1 answer

Two coils A and B are connected in series across a 240-V, 50-Hz supply. The resistance of A is 5 Ω

asked Feb 13, 2019 in Mathematics by kratos

+3 votes

1 answer

A voltage v (t) = 141.4 sin (314 t + 10°) is applied to a circuit and the steady current given by

asked Jan 30, 2019 in Mathematics by kratos

+1 vote

1 answer

At resonance, the parallel circuit of Figure constituted by an iron cored coil and a capacitor behaves like

asked Jan 27, 2019 in JEE by kratos

+3 votes

1 answer

For a series R.L.C circuit the inductor is variable. Source voltage is 200√2sin100πt.

asked Jan 20, 2019 in Mathematics by kratos

+1 vote

1 answer

A pure resistance of 50 ohms is in series with a pure capacitance of 100 micro farads.

asked Jan 18, 2019 in Mathematics by kratos

+3 votes

1 answer

(a) What is the impedance of the circuit ? (b) What is the value of the resistance?

asked Jan 11, 2019 in Mathematics by kratos

+3 votes

1 answer

A non-inductive resistor is connected in series with a coil and a capacitor. The circuit is connected to a single-phase a.c. supply.

asked Jan 3, 2019 in Mathematics by kratos

+2 votes

1 answer

For the circuit shown in Fig. , find the values of R and C so that Vb = 3Va, and Vb

asked Jan 2, 2019 in Mathematics by kratos

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