Switching on coils with Cobra SMARTsense Principle In this experiment, self-induction is investigated - a property of coils in which a voltage is generated by changing the current. This counteracts the change in current and leads to a time delay when switching on and off. Tasks - What effect does a coil have when closing a DC circuit?
- Investigate the voltage across a resistor connected in series with a coil.
Learning objective The aim of the experiment is to learn that when a coil is switched on, a self-induction voltage is created which counteracts the increase in current. Advantages - Simple setup in just a few minutes.
- High resolution data acquisition (up to 10 kHz).
- Improved media competence.
- Safe student power supply (RiSU-compliant).
Scope of delivery |
Plug-in board, for 4 mm plugs
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06033-00
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1
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Cobra SMARTsense Voltage - Sensor for measuring electrical voltage ± 30 V (Bluetooth + USB)
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12901-01
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1
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Coil, 400 turns
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07829-01
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1
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Coil, 800 turns
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07829-03
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1
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Iron core, U-shaped, laminated
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07832-00
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1
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Iron core, I-shaped, laminated
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07833-00
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1
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Tightening screw
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07834-00
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1
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Connecting cable, 32 A, red, various lengths
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07360-01
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2
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Connecting cable, 32 A, blue, various lengths
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07360-04
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2
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Connecting cable, 32 A, red, various lengths
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07361-01
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1
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Connecting cable, 32 A, blue, various lengths
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07361-04
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1
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measureAPP - the free measurement software for all devices and operating systems
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14581-61
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1
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Resistor 100 Ohm, 1W, G1
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39104-63
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1
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PHYWE Power supply, 230 V,DC: 0...12 V, 2 A / AC: 6 V, 12 V, 5 A
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13506-93
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1
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Wire building block, housing G1
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39120-00
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2
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on-off switch, G1
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39139-00
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1
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Service
