Question

За 3 сек магнитный поток, пронизывающий проволочную рамку, равномерно увеличился с 6 Вб до 9 Вб. Чему равно при этом значении ЭДС индукции в рамке?А. 1 ВБ. 3 ВВ. 6 В

Answer 1

закон электромагнитной индукции: E=(Ф-Фо) /t
E=(9-6)/3
E=3/3
E=1
Ответ: А) 1В

Answer 2

Calculation of the Induced EMF in the Wire Loop

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

In this case, the magnetic flux through the wire loop increased uniformly from 6 Wb to 9 Wb in 3 seconds. To find the induced EMF, we need to calculate the change in magnetic flux per unit time.

The change in magnetic flux (∆Φ) can be calculated by subtracting the initial magnetic flux (Φ_initial) from the final magnetic flux (Φ_final):

∆Φ = Φ_final - Φ_initial

∆Φ = 9 Wb - 6 Wb

∆Φ = 3 Wb

The time interval (∆t) is given as 3 seconds.

Now, we can calculate the induced EMF (ε) using the formula:

ε = -∆Φ/∆t

ε = -(3 Wb)/(3 s)

ε = -1 V

Therefore, the value of the induced EMF in the wire loop, when the magnetic flux increased from 6 Wb to 9 Wb, is -1 V.

Please note that the negative sign indicates the direction of the induced current in the wire loop, according to Lenz's law.