00:01
In this question, we are asked to find the polarity of voltage when we move the magnet towards the coil.
00:07
So, let us take this is the north pole and this is the south pole and this magnet is moving towards the coil, then the moment in the coil will be like this.
00:20
Then we can say the voltage in the circuit will be like this.
00:26
That means here it will be negative and here it will be positive.
00:32
So, this is how the voltage polarity will be.
00:36
In the second question, we are said the same magnet is moving away from the circuit.
00:45
Hence, if this coil is here and the magnet is moving away from the coil, then the polarity will change like this.
00:55
Hence, we will have the reverse polarity that is the negative direction will be here and the positive pole will be here.
01:05
So, this is how the polarity of voltage changes.
01:08
And in third, we are given that the magnet is kept inside the coil...