A metal wire is bent into a square and carries a uniform current throughout it.
ID: 1836007 • Letter: A
Question
A metal wire is bent into a square and carries a uniform current throughout it. The net magnetic field at the center of this square is zero. You are pulling a rectangular coil through a uniform static magnetic field that extends well beyond the boundary of the coil. The faster you pull this coil perpendicular to the field, the greater the emf that is induced in it. Two pro tons have velocities parallel to each other and with same magnitude. In the laboratory reference ir.tme, each one experiences an electric and a magnetic field due to the other charged particle; but m the frame of each proton they experience only an electric field. It a magnetic compass is placed between the plates of a fully charged capacitor, the compass will align itself along the electric field lines. A large magnetic flux change through a coil must induce a greater emf in this coil than a small flux change.Explanation / Answer
210 F
22) T
23) T
24) F
25) F