Q1. What is the frequency of rotation of 1000 loop coil of area 20cm2 in a magnetic field of 5T to generate an emf that has a ma

Question

Q1. What is the frequency of rotation of 1000 loop coil of area 20cm2 in a magnetic field of 5T to

generate an emf that has a maximum value of 15.7V?​

in progress 0
bonexptip 5 years 2021-09-05T10:00:15+00:00 1 Answers 11 views 0

Answers ( )

  1. Orla
    0
    2021-09-05T10:02:02+00:00
    Reply

    Answer:

    Explanation:

    Emf e generated in a coil with no of turn n and area A rotating in a magnetic field B  with angular speed of ω is given by the expression

    e = e₀ sinωt

    where e₀ = nωAB which is the maximum emf generated

    Putting the given values

    15.7 = 1000xω x 20 x 10⁻² x 5

    ω = .0157

    frequency of rotation

    = ω / 2π

    = .0157 / 2 x 3.14

    = .0025 /s

    9 rotation / hour .

Leave an answer

Browse

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