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To practice problem-solving strategy 25.1 electromagnetic induction A 1000 of wire of radius a =40 mm has an electrical.
Part D suppose the external magnetic field is decreased at a greater rate so that it takes less time for the field to drop to zero. What would happen to the induced current in the coil?
A, The current would change direction
B, The current would decrease
C, The current would be unchanged.
D, The current would increase.
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Electromagnetic induction refers to the process that produces an EMF because of a changing magnetic flux. Induction in electromagnetism is typically defined by Faraday’s Law that declares modifications in magnetic fields result in modifications in the field of electricity (and reversed). In the case in the case of flux magnetic, altering it can cause the appearance of an unzero voltage on the surface that is closed.♦ Relevant knowledge
The correct answer is D, The current would increase.
We are protected by Faraday’s Law
V = − (dΦB) ⁄ dt
The magnetic field will decrease, and the current in the coil will increase. Because the electrostatic force which moves them is greater, the coil’s charges move faster and the current would rise.