Part A = +y
Part B = 0
Part C = +x
Part D = -y
Part E = 0
Part F = -y
Part G = -x
The bent wire circuit shown in the figure is in a region of space with a uniform magnetic field in the +z direction.
Determine the direction of the magnetic force along segment 1, which carries current in the -x direction.
Determine the direction of the magnetic force along segment 2, which carries current in the -z direction.
Part A = See the screenshot
Consider an infinite sheet of parallel wires. The sheet lies in the xy plane. A current l runs in the -y direction through each wire. There are N/a wires per unit length in the x direction.
Write an expression for B(d),the magnetic field a distance d above the xy plane of the sheet.Click for More...
Part A = +z
Part B = -z
Part C = +y
Part D = at a –45° angle in the xz plane
The electric and magnetic field vectors at a specific point in space and time are illustrated. Based on this information, in what direction does the electromagnetic wave propagate?Click for More...
Part A = twice as great
Part B = unchanged
When a magnet is plunged into a coil at speed v, as shown in the figure, a voltage is induced in the
coil and a current flows in the circuit.
If the speed of the magnet is doubled, the induced voltage is?
The same magnet is plunged into a coil that has twice the number of turns as before. The magent
is shown before it enters the coil in the figure. If the speed of the magnet is again , the induced
current in the coil is?
Part A = counterclockwise
Part B = counterclockwise
Part C = zero
Part D = zero
Part E = clockwise
For each of the actions depicted below, a magnet and/or metal loop moves with velocity v (v is constant and has the same magnitude in all parts). Determine whether a current is induced in the metal loop. If so, indicate the direction of the current in the loop, either clockwise or counterclockwise when seen from the right. The axis of the magnet is lined up with the center of the loop.Click for More...
Part A = repulsive
Part B = Since the currents flow in opposite directions, then due to the right hand rule, the magnetic field induced by one wire will be in an opposite direction to that of the other wire.
Part C = 10 μT
Part D = 50 μT/m
Two long, straight, parallel wires 10 cm apart carry currents in opposite directions.
Use the right-hand source and force rules to determine whether the forces on the wires are attractive or repulsive.
If the wires carry equal currents of 5.0 A, what is the magnetic field magnitude that each produces at the other’s location?
Use the result of part C to determine the magnitude of the force per unit length they exert on each other.