Question

All formulas of magnetic effects of electric current 0

Answer 1

Answer:

Hi mate the important formulae of magnetic effects of Electric Current .

(i) F = B i L sin theta

where , B= magnetic field,F= Force ,I = current,

sin theta = direction of current make an angle theta from the direction of magnetic field.

L= length of uniform current carying conductor.

(ii) F = Qvb

F= force , Q= +ve charge particle moving,

B= magnetic field.

(iii)F=QvBsin theta

(iv)

e= -N∆ phi/∆t

e=electromotive force, N= turns of wire ,∆phi=(phi1-phi2)= magnetice field lines {flux}

∆t= time interval.

also,

B= μ/2π.i/r

B= 10^-7×2i/r

@_/\_

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Answer 2

Explanation:

The term "magnetic effects of current " means that " a current flowing in a wire produces a magnetic field round it ". the magnetic effect of current was discovered by Oersted found that a wire carrying a current was able to deflect a magnetic needle.