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file_4635

file_4635

تعداد صفحه : ۹TAP 416- 4: Building up a transformer Producing flux, linking flux In a transformer a primary coil produces flux: an electric circuit of varying current driven through a coil (current-turns) drives a changing flux through a magnetic circuit. The magnetic circuit interacts with a second electric circuit. The changing flux through this second electric circuit produces an emf in the circuit.  You will need: gimballed bar magnet (Magnaprobe) signal generator 240-turn coil 1100-turn coil digital multimeter microvoltmeter iron rod aluminium rod search coil oscilloscope power supply, 0–12 V ac Producing a flux  Closing the switch allows the power supply to drive a current round the coil. The current is driven round a number of turns, producing a flux. Use the…

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