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	Current Balance	Physics Home > Teaching Labs > Electricity & Magnetism > Current Balance

Topics

Points of Emphasis

Prerequisites

Lab Activities

Students use the apparatus to investigate:

a) how the magnetic force depends on the current in the wires;

b) the magnetic force as a function of distance between the wires;

c) how the magnetic force varies with the length of the wire; and

d) the forces on currents in a constant magnetic field.

Course Level

Student Handouts

Equipment

Number of set-ups available: 1

Per lab station:

1 current balance apparatus
4 different length metal loops
2 DC power supplies (0-5A)
2 multimeters
2 1 ohm, high power resistors
1 ruler
1 mirror
1 ringstand
1 ringstand clamp
1 three-pronged clamp
1 zero mark indicator
1 iron yoke
6 alligator clips
4 ceramic magnets
8 banana leads
1 paper platform for weights
1 pair of tweezers
1 set of small masses containing:

1 30 mg mass
1 50 mg mass
1 100 mg mass
1 200 mg mass
1 500 mg mass
1 1000 mg mass

Notes


	Last Update: Site contact: largent@Dartmouth.EDU	Top Physics Home Lecture/Demo Site Map

Last Update:

Site contact: largent@Dartmouth.EDU

Top Physics Home Lecture/Demo Site Map