Question

Магнитный поток через замкнутый проводник равномерно увеличивается от 0,2 мВб до 1 мВб в течении 0,01 секунды. Определите ЭДС индукции в проводнике

Answer 1

E=delta Ф/ delta t=0.08 В -------------

Answer 2

Calculation of the induced electromotive force (EMF) in the conductor

To determine the induced electromotive force (EMF) in the conductor, we can use Faraday's law of electromagnetic induction. According to Faraday's law, the induced EMF in a conductor is equal to the rate of change of magnetic flux through the conductor.

The formula to calculate the induced EMF is:

EMF = -dΦ/dt

Where: - EMF is the induced electromotive force - dΦ/dt is the rate of change of magnetic flux through the conductor

In this case, the magnetic flux through the conductor is uniformly increasing from 0.2 mWb to 1 mWb over a time period of 0.01 seconds.

Using the given values, we can calculate the rate of change of magnetic flux:

Rate of change of magnetic flux (dΦ/dt) = (Final magnetic flux - Initial magnetic flux) / Time

dΦ/dt = (1 mWb - 0.2 mWb) / 0.01 s

Calculating the rate of change of magnetic flux:

dΦ/dt = 0.8 mWb / 0.01 s = 80 mWb/s

Therefore, the induced electromotive force (EMF) in the conductor is equal to the rate of change of magnetic flux:

EMF = -dΦ/dt = -80 mWb/s

So, the induced electromotive force (EMF) in the conductor is -80 mWb/s.

Please note that the negative sign indicates the direction of the induced current according to Lenz's law, which states that the induced current will flow in a direction that opposes the change in magnetic flux.