Thursday, 26 June 2014 16:59
K3-05: DEMOUNTABLE TRANSFORMER - WELDER
Additional Info
- ID Code: K3-05
- Purpose: Show that very large currents can be produced in the secondary of a step-down transformer.
- Description: A 500-turn primary coil operated at 140 VAC and 5-turn secondary coil form a transformer (using a demountable iron core). This is used to produce large secondary current. Holding two nails together tip-to-tip across the secondary produces over 100 amps in the secondary (stepped up from 4-5 amps in the primary), welding the two nails together.
- Availability: Available
- Loc codes: K3
Published in
K3 Transformers
Tagged under
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K3-01: INDUCTION IN A TRANSFORMER
Demonstrate that a change in the primary current induces a secondary voltage Read More
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K3-02: DEMOUNTABLE TRANSFORMER - SINGLE SPARKS
Demonstrate induction of large voltages by a large secondary-to-primary turn ratio Read More
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K3-03: DEMOUNTABLE TRANSFORMER - V VS N - PROJECTION METER
Demonstrate the effect of changing the number of turns in the secondary of a transformer Read More
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K3-04: DEMOUNTABLE TRANSFORMER - V VS N - OSCILLOSCOPE
Demonstrate the role of turns in the secondary of a transformer
Read More
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K3-05: DEMOUNTABLE TRANSFORMER - WELDER
Show that very large currents can be produced in the secondary of a step-down transformer Read More
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K3-06: TRANSFORMER - PRIMARY CURRENT VS LOAD
Counterintuitive demonstration of how the primary current in a transformer increases when the secondary load increases Read More
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