Question

The induction coil works on the principle of

• A. Self induction
• B. Mutual induction
• C. Ampere's rule
• D. Fleming right hand rule

Answer 1

The correct option is B

Mutual induction

Explanation for the correct option

In the case of option B:

1. The process is known as mutual induction when a change in current in one coil causes an EMF in the other.
2. The mutual inductance of the pair of coils determines how strong the EMF is generated.
3. The S.I. Henry is the same as the unit of self-inductance when referring to mutual inductance.
4. A device called an induction coil is used to create high potential differences from sources of low potential differences.

Explanation for the incorrect option

In the case of option A:

1. Self-inductance is a characteristic of the current-carrying coil that opposes or resists changes in the current that passes through it. This mostly happens because of the self-induced EMF that the coil produces.

In the case of option C:

1. An electric current's ability to produce a magnetic field is inversely correlated with its magnitude, with the permeability of empty space serving as the proportionality constant.

In the case of option D:

1. Fleming's right-hand rule reveals the current flow direction. The thumb, index finger, and middle finger of the right hand are held together perpendicularly The conductor's velocity in relation to the magnetic field is where the thumb is positioned.

Hence, the correct option is (B).