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As the choke coil reduces the voltage across the tube without wasting much power, it is used in the fluorescent tubes with ac mains. An ordinary resistor cannot be used instead of choke coil because it wastes power in...
When an iron core is inserted in the choke coil (which is in series with a lamp connected to an ac line), the lamp will glow dimly. This is because the choke coil and the iron core increase the impedance of the cir...
The dc signal will appear across capacitor C because for dc signals, the impedance of an inductor L is negligible while the impedance of a capacitor C is very high (almost infinite).Therefore, a dc signal appears acr...
Yes, in any ac circuit, the applied instantaneous voltage is equal to the algebraic sum of the instantaneous voltages across the series elements of the circuit. The same is not true for rms voltage because voltages ac...
Average power transferred to the inductor is zero as actual voltage leads the current by π/2
It is known that,Power = V X IPower = 220 x 2.2 Power = 484 W Therefore, the net power consumed over a full cycle is 484 W
Provided that,Supply voltage, V= 120 V Potential difference (V) across each capacitor will be one-third of the supply voltage.V= 120/3 = 40 VClearly, the potential difference across each capacitor is 40 V....
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