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i)Sketch on the axis below a graph of the e.m.f generated against the angle as the coil rotates from 00 to 900 and from 900...

      

i)Sketch on the axis below a graph of the e.m.f generated against the angle as the coil rotates from 00 to 900 and from 900 to 1800.
fig42171020191419.png
ii)Give reasons for the changes in the e.m.f as the coil rotates from 00 to 1800.

  

Answers


Kavungya
fig43171020191420.png

At 00 the coil cuts the field lines perpendicularly hence maximum induced e.m.f
-As the coil moves from 00 to 900 the angle at which the coil cuts the field line reduces until 900 when the coil is parallel to the field lines hence no induced e.m.f.
-From 900 the angle at which the coil cuts the field lines increases until 1800 when the coil is perpendicularly to the field line again hence max induced current at 1800.
Kavungya answered the question on October 17, 2019 at 11:22


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