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प्रश्न
You are provided with a magnetic compass, an empty matchbox, a battery of two cells and connecting wires. Using these objects, how will you make a tester for testing an electric circuit? Draw the necessary circuit diagram and explain.
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उत्तर
Whenever current flows through the circuit the magnetic compass needle shows deflection due to magnetic effect of current.
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संबंधित प्रश्न
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 |
 |
| Boojho's Experiment | Paheli's Experiment |
| (A) | (B) |
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In the circuit given as figure, Boojho observed that copper is deposited on the electrode connected to the negative terminal of the battery. Paheli tried to repeat the same experiment. But she could find only one copper plate. Therefore, she took a carbon rod as negative electrode. Will copper still be deposited on the carbon rod? Explain your answer.
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| 2. | Cathode | b. | Positive terminal |
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