Question

Calculate the flux passing through an area of 50 cm² when it is placed in a magnetic
field of induction 1.5 T such that normal to the plane of the area makes an angle 60°
with magnetic field.​

Answer 1

Explanation:

A rectangular coil of wireN=100

Area=A=10×15cm2=150×10−4m−2

Current I=2amp=2A

Induction =2×10−3wb/m2

sinθ=θ=90°sin theta1=sin30°=21

T=nBIAsin teta\quad=100\times2\times10^{-3}\times12\times150\times10^{-4}\times\sin30°$$

=200×10−7×12×150×21=1200×10−6×15=180×10−4=18×10−3=0.018N−m