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  1. 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-

  2. 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.

  3. 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)

  4. 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)

  5. 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.

  6. 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.

  7. Current Balance. Theory: A current-carrying wire in a magnetic field experiences a force that is usually referred to as a magnetic force. The magnitude and direction of this force depend on four variables: the magnitude of the current (I); the length of the wire (L); the strength of the magnetic field (B); and the angle between the field and ...

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