[填空题]
Two identical magnets with opposite poles f83d bg)( cazvmf*xrgx ;-s+ev1(iaw dmff9w;fne8:3/n; abyk s3 wd jacing inward are placed and fixed in a circular track as shown. The magnetic field lines between magnets pass through a conducting loop which is also shown. The circulaws 3n 9f:;3wb;ndy jmek8f/f ar track rotates around the conducting loop with an angular frequency of $ω$. As the track rotates an emf is induced on the loop.
(a) Explain, with reference to the diagram, how the rotation of the generator produces an emf in the loop.
2.(1)The graph shows how the induced emf varies with time
The equivalent resistance of the conductor loop is $0.50\,kΩ$.
Calculate the rms value of the induced current in the loop. State your answer to an appropriate number of significant figures. $I_{rms}$ = A
(2)Calculate the average power generated on the loop. $P_{av}$ = W
3.Comment on the effect of each of the following on the graph of induced current through the loop versus time:
(1)An increase in angular velocity $ω$
(2)An increase in the strength of magnets
