Quiz 7
Cards (5)
- A long straight wire carries current directly towards you. Magnetic field created by this current is directed:
- Two horizontal wires with identical in magnitude currents carry currents: left wire directly towards you, right wire away from you. As viewed from your position, magnetic field exactly midway between wires is:
- A negative charge moves due south in the area, where magnetic field is directed straight up. The force acting on this charge is directed:
- A long wire carries current towards east. A positive charge moves westward and just north from the wire. What is direction of a force exerted by the wire on the charge?
- A particle of charge q enters region with uniform magnetic field perpendicular to its velocity and follows circular path. If this particle would carry charge 2q, the radius of circular path will be: