railway RRB Technician Grade 1 Mock Test 2024 Physics Moving Charges and Magnetism Magnetic Force - Definition of B
Two long wires with no contact are placed perpendicular to each other. i1 and i2 are currents flowing through these wires respectively. The magnetic force on a small length 'dl' of the second wire situated at a distance 'l' from first wire is proportional to
1
i1i2
2
l
3
\(\frac{1}{i_{1} i_{2}}\)
4
l2