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The current balance is used to measure the force of repulsion between identical, oppositely di- rected, currents in parallel conductors. In this experiment you will:
In this experiment you will use a current balance in which the upper conductor is free to pivot on knife edges. The upper conductor is balanced so that the wires are a small distance apart.
Physics 215 - Experiment 12 The Current Balance 62 Advance Reading Urone- (Chapter-section) 21-3, 21-4 and 21-7. Objective: The objective of this experiment is to measure the effects of a magnetic field on a current carrying conductor. Theory: A magnetic field exerts a force, FFB, on a moving charge. The magnitude of FFB is:
CURRENT BALANCE Introduction: In this lab, we balance a known gravitational force against the repulsive magnetic force between antiparallel currents. We use our results to calculate an experi- mental value for µ0, the permeability of free space. You may ignore errors for this lab.
The current balance (Fig. 1) is a piece of equip-ment traditionally employed in an introductory elec-tricity and magnetism laboratory course to illustrate the effects of Ampere’s law. It consists of two parallel wires—a stationary wire mounted on an insulating. Fig. 1. The current balance.
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21 Ιαν 2011 · current is brought near a second wire also carrying a current the two wires experience forces. The force is proportional to the product of the two currents and depends on the relative orientations of the wires. A moving charge in one wire must exert a force on a moving charge in the other wire.
