In Procedure 1: a wire of length L = 3.91 cm sits on an electronicscale. There is also a uniform mangetic field perpendicular to thewire, and along its entire length. When there is no current in thewire, the scale reads 573 g. When a current I = 48.2 mA goesthrough the wire, and the scale reads 544 g.
NOTE: Beware of units!
a) Find F, the magnitude of the force on the wire created by theinteraction of the current and the magnetic field.
____ N
b) Find B, the magnitude of the magnetic field around thewire.
_________T
c) Suppose the direction of the magnetic field is reversed. Whatwould the scale read now?
___________ g
d) Suppose the system could take large currents. To what would youhave to raise the current (before you reversed the direction of B)so the force on the wire entirely supported the weight of the wire(and the scale reads zero)?
_________A
In Procedure 1: a wire of length L = 3.91 cm sits on an electronicscale. There is also a uniform mangetic field perpendicular to thewire, and along its entire length. When there is no current in thewire, the scale reads 573 g. When a current I = 48.2 mA goesthrough the wire, and the scale reads 544 g.
NOTE: Beware of units!
a) Find F, the magnitude of the force on the wire created by theinteraction of the current and the magnetic field.
____ N
b) Find B, the magnitude of the magnetic field around thewire.
_________T
c) Suppose the direction of the magnetic field is reversed. Whatwould the scale read now?
___________ g
d) Suppose the system could take large currents. To what would youhave to raise the current (before you reversed the direction of B)so the force on the wire entirely supported the weight of the wire(and the scale reads zero)?
_________A
