Question

Is it possible to use a capacitor of suitable capacitance instead of a choke coil ?

Answer 1

Hint:The ability of a part or circuit to collect and store energy in the form of an electrical charge is known as capacitance. Capacitors are energy-storage devices that come in a variety of shapes and sizes.

Complete answer:
Instead of a choke coil, a capacitor with a suitable capacitance can be used. Yes, we are aware that the capacitor provides reactance. As a result, emf is $90^{\circ}$ behind current.As cos $^{\circ}$ = 0 , the average power absorbed by the capacitor is zero. As a result, it will decrease ac current while consuming no electricity, allowing it to replace the choke coil in an AC circuit.

Since the average power consumed per cycle in an ideal capacitor is zero, we may use a capacitor with a reasonable capacitance as a choke coil. As a result, a condenser, like a choke coil, can reduce AC without wasting power.A condenser, like a choke coil, can minimize ac power consumption since the average power consumed per cycle in an ideal capacitor is also zero.

Complete impedance is the product of vector addition of resistance and capacitance in any $RC$ circuit. $R$ may be a resistance or a radiator. The current in an $RC$ series circuit connected across a voltage source can be regulated by changing the value of the capacitor.Capacitor-type fan regulators gradually incorporate capacitors, lowering fan voltage around the capacitor and, as a result, lowering fan speed. This theory can also be applied to other situations.

A capacitor connected in series with an inductor absorbs the leading power factor current (opposite to that of the inductor) and thus decreases the total current drawn from the supply. A capacitor bank improves the power factor by removing the inductive current portion from the supply in a grid or industry.

Note:Capacitive reactance refers to a capacitor's ability to oppose current flow. By lowering the supply voltage frequency or using a smaller capacitor value, we can increase the circuit's reactance and reduce current.