6. Magnetic force II

Physics for Scientists and Engineers (3rd Edition)

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Experiment 6 Experiment 6. Magnetic Forces II. In this experiment a simple current balance will be used to measure the force on a current-carrying wire in a magnetic field. The magnetic field is produced by a solenoid, and from the magnitude of the force on the wire the number of turns in the solenoid will be calculated. Equipment Power Supply, Solenoid, 50A Current shunt, Digital Voltmeter, Current Balance. Method The current balance is shown schematically in the following diagram: The balance arm is a thin rectangular insulator upon which a conducting wire PQRS is attached. The pins at P and S serve both a balance pivots and current terminals for this wire. The balance arm is positioned so that the wire segment QR is at the center of the solenoid. It is adjusted so that it balances when no current passes through PQRS. When current flows in such a direction as to pull the wire down, the force on the wire can be measured by adding weights at W to counterbalance the magnetic force. The wire segment and the solenoid are connected in series and each carries a current
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6. Magnetic force II - Experiment 6 Experiment 6 Magnetic...

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