List of top Physics Questions on Amperes circuital law asked in MET

Two wires PQ and QR carry equal currents I as shown in figure. One end of both the wires extends to infinity \(\angle PQR = \theta\). The magnitude of the magnetic field at O on the bisector of these two wires at a distance r from point Q is:

The formula for magnetic field of a certain component is given by \[ B = \frac{\mu_0 Ni}{2\pi r} \] where, \(N\) = total number of turns, \(i\) = current, \(r\) = radius. The component is: