For inducing emf in a coil the basic requirement is that (a) flux should link the coil (b) change in flux should link the coil (c) coil should form a closed loop (d) both b and c
Answers
Answer:
emf is induced when magnetic flux linked with the coil changes.and if the coil is closed induced current flows in circuit.
Answer: (d) both b and c
Explanation:
We know that according to Faraday's Law when the magnetic flux that connects the coil changes, the electromotive force is introduced into the cycle in proportion to the degree of fluctuation of the flux connection. Therefore, in order to use the emf in the coil, the magnetic flow connected to the coil must be adjusted and in that case the magnetic flow must increase or decrease.
According to Faraday's electromagnetic input principle, the emf is applied to the coil when the magnetic field connected to the coil changes.
Electromagnetic induction is a process in which a current can be cooled to flow due to a changing magnetic field.
In our article on magnetic field we look at the energy gained by moving charges in a magnetic field. The energy in the current holder because of the electrons moving between them when there is a magnetic field is a classic example. This process also works in retrospect. Moving the wire in a magnetic field or (equally) changing the magnetic field over time can cause the current to flow.
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