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EXPERIMENT 12 Current Balance Introduction 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: 1) Determine how the magnetic force of one current-carrying conductor on a parallel current-
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.
Experiment 18: The Current Balance. Advance Reading. Text: Magnetic force, magnetic field. Objective. The objective of this experiment is to measure the ef-fects of a magnetic field on a current carrying conduc-tor. Theory. A magnetic field exerts a force, FB, on a moving charge. The magnitude of FB is: FB = qvB sin θ (18.1)
The current balance. INTRODUCTION This fundamental experiment denes the unit of electric current: the Ampere. The French physicist Andre Marie Ampere (1777-1863) showed that two parallel currents attract each other if the currents are in the same direction and repel each other if the currents are in opposite directions.
Advance Reading. Text: Magnetic force, magnetic field. Objective. The objective of this experiment is to measure the ef-fects of a magnetic field on a current carrying conduc-tor. Theory. A magnetic field exerts a force, ~FB, on a moving charge. The magnitude of ~FB is: FB = qvB sin (19.1)
The objective of this lab is to measure the effects of a magnetic field on a current carrying conductor by selectively varying a number of parameters. Theory: A magnetic field exerts a force F on a. B. moving positive charge that is given by the vector cross product. Current Limiting Resistor.
THE CURRENT BALANCE Physics 258/259. The time average force between two parallel conductors carrying an alternating current is measured by balancing this force against the gravitational force on a set of known masses. The relationship between the time-average force and the root-mean-square current is inves-tigated using several methods of analysis.
