PDF chapter test TRY NOW
Test whether the given material allows current to pass through it or not:
- Collect samples of different types of materials such as coins, cork, rubber, glass, keys, pins, plastic scale, wooden block, aluminium foil, candle, sewing needle, thermo Col, paper and pencil lead.
- One by one bring the free ends of the wires of your tester in contact with two ends of the samples you have collected.
- Make sure that the two wires do not touch each other while you are doing so.
Placing a tester in between the wires
Does the bulb glow in each case? Make a table in your notebook similar to table, and record your observations.
| Object used in the place of switch | Material it is made of | Bulb glows (Yes/No) |
| Coins | ||
| Cork | ||
| Rubber | ||
| Glass | ||
| Keys | ||
| Pins | ||
| Plastic scale | ||
| Wooden block | ||
| Aluminium foil | ||
| Candle | ||
| Sewing needle | ||
| Thermo Col | ||
| Paper | ||
| Pencil lead |
Important!
This is a activity-based exercise. Write the answer in a sheet and compare it with the solution given below.
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