A 100-turn, the 2.0-cm-diameter coil is at rest with its axis vertical. A uniform magnetic field away from vertical increases from to in . What is the induced emf in the coil?
is the current in the loop.
When a conductor is put in a fluctuating magnetic field, "an electrode material effect is generated," according to Faraday's original electromagnetic hypothesis. A current is induced when ever a conductor circuit is completed, and this is called as an induced current.
The electromotive force is the charge of magentic flux inside of the loop, as determined by Faraday's law, and it is defined by equation in the form
With is the flux and through loop, which is the amount of magnetic field that flows through a loop of area , is the flux through the loop, which is given by
Let's plug this expression into equation () to get .
The loop's area is computed by
In the time , the strong magnetic changes from to , then we get this changes over the years by
To be get , we plug the values of , , with Equation (2).
The square loop shown in moves into a magnetic field at a constant speed of.The loop has a resistance of , and it enters the field at
a. Find the induced current in the loop as a function of time. Give your answer as a graph of ii versus from to
b. What is the maximum current? What is the position of the loop when the current is maximum?
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