Question

В катушке числом витков 1000 магнитный поток изменяется со скоростью 0,7 вб/с. найдите ЭДС индуцкции.

Answer 1

E=N*dФ/dt=1000*0,7=700 B

Answer 2

Calculation of the Electromotive Force (EMF) of Induction

To calculate the electromotive force (EMF) of induction in a coil with 1000 turns and a magnetic flux changing at a rate of 0.7 Wb/s, we can use Faraday's law of electromagnetic induction. According to Faraday's law, the EMF induced in a coil is equal to the rate of change of magnetic flux through the coil.

The formula for calculating the EMF of induction is:

EMF = -N * dΦ/dt

Where: - EMF is the electromotive force (in volts) - N is the number of turns in the coil - dΦ/dt is the rate of change of magnetic flux through the coil (in Wb/s)

In this case, the number of turns (N) is 1000 and the rate of change of magnetic flux (dΦ/dt) is 0.7 Wb/s.

Substituting these values into the formula, we get:

EMF = -1000 * 0.7 = -700 V

Therefore, the electromotive force (EMF) of induction in the given coil is -700 V.