Magnetomotive Force Calculator:>
Enter the values of current, I(A) and the number of turns, N to determine the value of magnetomotive force, mmF(A⋅turns).
Magnetomotive Force Formula:
Magnetomotive force measures the force that generates a magnetic field in a magnetic circuit. It is analogous to electromotive force in an electrical circuit.
Magnetomotive force, mmF(A⋅turns) in ampere-turns is calculated by multiplying the current, I(A) in amperes by the number of turns, N in the coil.
Magnetomotive force, mmF(A⋅turns) = I(A) * N
mmF(A⋅turns) = magnetomotive force in ampere-turns, A-turns.
I(A) = current in amperes, A.
N = number of turns in the coil, N.
Magnetomotive Force Calculation:
- A coil with 50 turns carries a current of 2 Amperes. Calculate the magnetomotive force.
Given: I(A) = 2A, N = 50.
Magnetomotive force, mmF(A⋅turns) = I(A) * N
mmF(A⋅turns) = 2 * 50
mmF(A⋅turns) = 100A-turns.
- Suppose we have a magnetomotive force of 150 A⋅turns and a current of 3 Amperes. Find the number of turns in the coil.
Given: I(A) = 3A, mmF(A⋅turns) = 150A-turns.
Magnetomotive force, mmF(A⋅turns) = I(A) * N
N = mmF(A⋅turns) / I(A)
N = 150 / 3
N = 50.