Question 2 (10%) An electromagnet of flux equal to 5Wb increases uniformly to 20Wb in a period of 2s Calculate the Voltage induc

Question

Question 2 (10%)
An electromagnet of flux equal to 5Wb increases uniformly to 20Wb in a period of 2s Calculate the
Voltage induced in a coil having(6 turys and is stationary in the magnetic field.
(10%)

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Thiên Thanh 3 months 2021-08-07T19:58:23+00:00 1 Answers 7 views 0

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    2021-08-07T19:59:52+00:00

    Answer:

    45 V

    Explanation:

    Electromagnetic induction occurs when there an electromotive force is induced in a coil due to a change in magnetic flux through the coil.

    Mathematically, the induced voltage is given by Faraday-Newmann-Lenz law:

    \epsilon = - \frac{N\Delta \Phi}{\Delta t}

    where

    N is the number of turns in the coil

    \Delta \Phi is the change in magnetic flux

    \Delta t is the time elapsed

    In this problem,

    N = 6 is the number of turns in the coil

    The change in magnetic flux is:

    \Delta \Phi = 20 Wb - 5 Wb = 15 Wb

    \Delta t = 2 s is the time elapsed

    Substituting, we find the induced voltage:

    \epsilon = - \frac{(6)(15)}{2}=-45 V

    And the negative sign only indicates the direction.

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )