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The amount of positive and negative charges in a cup of water (\(250\) g) are respectively:
| 1. | \(1.6 \times10^9\) C, \(1.4 \times10^9\) C |
| 2. | \(1.4 \times10^9\) C, \(1.6 \times10^9\) C |
| 3. | \(1.34 \times10^7\) C, \(1.34 \times10^7\) C |
| 4. | \(1.6 \times10^8\) C, \(1.6 \times10^7\) C |
Subtopic: Â Electric Charge |
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If \(10^9\) electrons move out of a body to another body every second, how much time approximately is required to get a total charge of \(1\) C on the other body?
1. \(200\) years
2. \(100\) years
3. \(150\) years
4. \(250\) years
Subtopic: Â Electric Charge |
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If a body is charged by rubbing it, its weight:
| 1. | remains precisely constant. |
| 2. | increases slightly. |
| 3. | decreases slightly. |
| 4. | may increase slightly or may decrease slightly. |
Subtopic: Â Electric Charge |
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Given below are four statements:
| (a) | The total charge of the universe is constant. |
| (b) | The total positive charge of the universe is constant. |
| (c) | The total negative charge of the universe is constant. |
| (d) | The total number of charged particles in the universe is constant. |
Choose the correct option:
| 1. | (a) only | 2. | (b), (c) |
| 3. | (c), (d) | 4. | (a), (d) |
Subtopic: Â Electric Charge |
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