Question

сколько витков должна иметь катушка,чтобы при изменении магнитного потока внутри нее от 24 мВб за 32с в ней создавалась средняя ЭДС индукции 10 в

Answer 1

e=N(Ф2-Ф1)/t

N=et/Ф2-Ф1=10В*32с/0.024Вб=13 333

Answer 2

Calculating the Number of Turns in the Coil

To calculate the number of turns in the coil, we can use Faraday's law of electromagnetic induction, which states that the induced electromotive force (EMF) in any closed circuit is equal to the rate of change of the magnetic flux through the circuit.

The formula for calculating the induced EMF is given by:

EMF = -N * (ΔΦ/Δt)

Where: - EMF is the induced electromotive force (in volts) - N is the number of turns in the coil - ΔΦ is the change in magnetic flux (in webers) - Δt is the change in time (in seconds)

We are given: - ΔΦ = 24 mWb (converted to webers: 24 * 10^-3 Wb) - Δt = 32 s - EMF = 10 V

Using the formula, we can rearrange it to solve for N:

N = -EMF / (ΔΦ/Δt)

Substitute the given values: N = -10 / (24 * 10^-3 / 32)

Calculating the value: N ≈ -10 / (0.00075) ≈ -13333.33

The negative sign indicates the direction of the induced current, but in this context, we are interested in the magnitude of the number of turns. Therefore, the number of turns in the coil should be approximately 13333.

Conclusion

To create an average induced EMF of 10 V when the magnetic flux changes inside the coil from 24 mWb in 32 seconds, the coil should have approximately 13333 turns.