00:01
Hello students, let us consider given values b is equal to 35 cm, c is equal to 135 ohm and d is equal to 8 tesla.
00:15
Now we need to find the value for the side length square coil l, magnetic field b and time taken to remove the coil from the magnetic field which is t and the total resistance r by using these values.
00:32
Now length is given as b divided by 5 cm, substituting for b as 35 we get 7 cm which is 0 .07 m.
00:44
Then b magnetic field is equal to d divided by 100 that is 8 divided by 100 we get 0 .08 tesla.
00:53
Time t is given by b divided by 50, b given 35 divided by 15 will be 0 .7 seconds.
01:05
Then resistance r is equal to c which is equal to 135 ohm.
01:11
The rate of change of flux through the coil can be calculated by using flux change is equal to area a into magnetic field b divided by time t.
01:25
Now we need to find area of the coil where area is given by length into breadth.
01:31
Here we are having length squaring that we get area.
01:38
So 0 .07 whole square will be equal to 0 .0049 and we have magnetic field value substituting for area magnetic field 0 .08 and time 0 .7 we obtain change in flux will be equal to 0 .00056 tesla meter square per second.
02:06
Now we need to calculate induced current.
02:09
From ohm's law we know that v is equal to i r.
02:13
Here we can take v as induced emf so it will be e is equal to i r then i will be equal to induced emf divided by r where induced emf is given by using faraday's law n into flux change del phi by del t...