A choke coil should have
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A choke coil is an inductance coil with very small resistance. The primary function is to control current in AC circuit. In electronics. Higher frequencies are blocked while passing direct current.
- high resistance and low inductance
- high resistance and high inductance
- low resistance and high inductance
- low resistance and low inductance
The Correct Option is C
Solution and Explanation
A choke coil should have high inductance and low resistance. This is done to reduce the current in an A.C. circuit. The high inductance is used in place of a high resistance because the inductance does not consume power, and thus no energy is lost as heat.
Also Read: Electromagnetic Induction
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Concepts Used:
Electromagnetic Induction
Electromagnetic Induction is a current produced by the voltage production due to a changing magnetic field. This happens in one of the two conditions:-
- When we place the conductor in a changing magnetic field.
- When the conductor constantly moves in a stationary field.
Formula:
The electromagnetic induction is mathematically represented as:-
e=N × d∅.dt
Where
- e = induced voltage
- N = number of turns in the coil
- Φ = Magnetic flux (This is the amount of magnetic field present on the surface)
- t = time
Applications of Electromagnetic Induction
- Electromagnetic induction in AC generator
- Electrical Transformers
- Magnetic Flow Meter