~Hey there! So, you've got a question about the EMF induced in a coil, right? No worries, I'm here to help! ~
The problem is that the magnetic flux through a coil having 100 turns decreases from 5 milliweber to 0 in 5 seconds. Now, to find the EMF induced in the coil, we can use Faraday's law of electromagnetic induction. Basically, this law states that the EMF induced is equal to the rate of change of magnetic flux through the coil.
So, let's dive right in! We know that the initial magnetic flux (Φ1) is 5 mWb and the final magnetic flux (Φ2) is 0, and the time (t) is 5 seconds. Therefore, the rate of change of magnetic flux is calculated to be -1 mWb/s.
Now, all we need to do is plug in the values in the formula: EMF = -dΦ/dt. By doing so, we find that the EMF induced in the coil is 1 millivolt.
Answers & Comments
Answer:
induced emf = 100×5× 10−35 = 0.1V.
Verified answer
Answer:
~Hey there! So, you've got a question about the EMF induced in a coil, right? No worries, I'm here to help! ~
The problem is that the magnetic flux through a coil having 100 turns decreases from 5 milliweber to 0 in 5 seconds. Now, to find the EMF induced in the coil, we can use Faraday's law of electromagnetic induction. Basically, this law states that the EMF induced is equal to the rate of change of magnetic flux through the coil.
So, let's dive right in! We know that the initial magnetic flux (Φ1) is 5 mWb and the final magnetic flux (Φ2) is 0, and the time (t) is 5 seconds. Therefore, the rate of change of magnetic flux is calculated to be -1 mWb/s.
Now, all we need to do is plug in the values in the formula: EMF = -dΦ/dt. By doing so, we find that the EMF induced in the coil is 1 millivolt.
Explanation:
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