There is a long, straight conducting wire in which a steady electric current I is flowing. There are two observers, A and B, observing the electric field E and magnetic field B at a point P near the c

Question

There is a long, straight conducting wire in which a steady electric current $I$ is flowing. There are two observers, A and B, observing the electric field $\overline{E}$ and magnetic field $\overline{B}$ at a point P near the conducting wire. Observer A is stationary, whereas observer B is moving with the drift speed of electrons in the wire in the direction of the electric current. Which options are INCORRECT?

TestHub · Accepted Answer

For all observers B = 2 π r μ 0 ​ I ​ For observer B E = V d ​ × B

Physics - Gravitation Question with Solution | TestHub

Options:(select one or more)

Doubts & Discussion

JEE Advanced (2028)