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Suggest an activity to show that potato is a good conductor.
Potato is not a good conductor of electricity. It can conduct electricity when voltage is high. This is because it has some dissolved salts that help in the conduction of electricity.
Activity:
We can use the chemical energy in potato to light a small LED bulb.
Place the potato on a table. Insert the zinc nail into the potato slightly off-center. Insert about 1 inch of the nail into the potato.
- Insert the copper nail into the potato about 1 inch away from the zinc nail. Make sure the same amount of nail is inserted into the potato.
- Attach the red wire from the LED to the end of the copper nail. Use a small strip of electrical insulating tape to hold the wire onto the nail.
- Attach the black wire from the LED onto the end of the zinc nail. Use tape to hold it in place.
- As soon as you connect the black wire to the nail the LED illuminates and you’ve made a potato lamp.
Updated on: 10-Oct-2022
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