Magnetic field due to currentHard
Question
The magnetic field at a point situated at a distance r close to a long straight current carrying wire is B. The field at a distance r/2 from the wire will be :-
Options
A.B / 2
B.B / 4
C.2B
D.4B
More Magnetic field due to current Questions
Two infinitely long linear conductors are arranged perpendicular to each other and are in mutually perpendicular planes ...An electron is the ground state of hydrogen atom is revolving in anticlockwise direction in a circular orbit of radius &...A conducting loop is pulled with a constant velocity towards a region of uniform magnetic field of induction B as shown ...The conductor ABCDEF carries a current of 4 A. Find the net magnetic field at the center O :-...A conducting circular loop of area $1.0{\text{ }m}^{2}$ is placed perpendicular to a magnetic field which varies as $B =...