Question

X X X X X X X X t-0.70 S X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Flux (T m^2) Magnetic flux as a function of time (s) i 2 3 4 5 6 8 9 10 11 12 (A) Induced current as a function of time (s) 2 3 4 5 6 8 9 10 11 12 Play Pause <<Step Step >> Reset Show. Only the motion The motion and the fux graph The motion and both graphs Set the rotation period: 4.0 5 2.0

Answer 1

1.

At time t= 0 as form the waveform i can see that magnetic flux is at its maximum value so that the angle between area vector and magnetic field vector will be zero degree because flux is the dot product of these two quantities so that they will be maximum only when they will make zero degree in between them. The direction of induced magnetic field will be in out of the paper so as to cancel out its cause that is source magnetic field.

2. Formula for flux linkage is given as

Flux = BA Cos $\Theta$

So that flux will be minimum when the angle between area and magnetic field will be maximum or angle of cosine will be 90° then at that time flux becomes zero.

As from the waveform we can see that when the magnetic field is maximum our induced current will becomes minimum. So at this moment induced current will be maximum when flux link with the coil is minimum.

3. Due to the linkages of flux the current will be induced in such a way that it can cause the effects of induction of any current or emf in it so as we can see that flux is going form left to right direction so that current will be induced in anticlockwise direction when loop will moves in anticlockwise direction so that induced current can oppose the cause of induction.