3. Some textbooks write Faraday\'s Law as: emf= -(change in magnetic flux/change

Question

3. Some textbooks write Faraday's Law as: emf= -(change in magnetic flux/change in time). put this equation into plain language.

4. A rectangular loop of wire as it is moved through a region of uniform magnetic field B at velocity v. The figure below shows three snapshots of this motion:

i. half of the loop has entered the region

ii. the loop is at the midpoint of the region.

iii. half the loop has exited the region.

a) the induced current through the loop when in position i is measured to be I.

What is the value of the induced current at position ii?

What is the value of the induced current at position iii?

B) if velocity is to remain constant, in what position, if any would it be necessary to apply an external force? explain.

A CD 3. Some textbooks write Faraday's Law as: EE At put this equation into plain language 4. A rectangular loop of wire as it is moved through a region of uniform magnetic field B at velocity v The figure below shows three snapshots of this motion: i. half of the loop has entered the region. ii. the loop is at the midpoint of the region iii. half the loop has exited the region. 11

Explanation / Answer

(3) Whenever there is a motion between conductor and magnetic field, the flux changes and this induces a voltage across a coil.in this formula minus sign is because of lenz's law.

According to faraday law -- induced emf =rate of change of flux linkage .

flux linkage = n( angle1-angle2). here n is turn in the coil.

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