AIPMT | 2014Magnetic field due to currentHard
Question
Two identical long conducting wires AOB and COD are placed at right angle to each other, with one above other such that O is their common point for the two. The wires carry I1 and I2 currents, respectively. Point P is lying at distance d from O along a direction perpendicular to the plane containing the wires. The magnetic field at the point P will be
Options
A.

B.
(I1 + I2)
(I1 + I2)C.
(i12 - i22)
(i12 - i22)D.
(I12 - I22)1/2
(I12 - I22)1/2More Magnetic field due to current Questions
Two isolated like magnetic poles of strength 10 and 40 S.I. units are separated by a distance 30 cm. The magnetic field ...Which one of the following are used to express intensity of magnetic field in vacuum?...A metallic disc of radius r is made of a material of negligible resistance and can rotate about a conducting horizontal ...A current I flows in an infinitely long wire with cross section in the form of a semicircular ring of radius R. The magn...A 10 eV electron is circulating in a plane at right angles to a uniform field at magnetic induction 10-4Wb/m2 (= 1.0 gau...

