Lamps in Series and Parallel with Inductor

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PIRA Classification: 5J20.20

Description: A 60 W bulb is placed in series with a 90 V battery and a 20 H inductor. A 25 W bulb is placed across the inductor. When the knife switch is closed, the 25 W bulb flashes momentarily, then dims. A second later, the 60 W bulb lights. When the switch is opened, the 25 W bulb will flash due to the collapse of the field.

Special Instructions: None

Ideally For: Phys 1102, 1202, 1302, 1402

Condition: Good

Setup time: 2 minutes