Wires 1 and 2 carrying currents i1 and i2 respectively are inclined at an angle θ to each other. What is the force on a small element dl of wire 2 at a distance r from wire 1 (as shown in figure) due to the magnetic field of wire 1 ?

Question:

Options :

(a) u0/2πr i1i2 dl tan 0
(b) u0/2πr i1i2 dl sin 0
(c) u0/2πr i1i2 dl cos 0
(d) u0/4πr i1i2 dl sin 0

Answer :

Answer Steps :

step 1:

step 2:

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