- 1(current)
Q. No.The amount of positive and negative charges in a cup of water (250 g) are respectively:
| 1. | 1.6×109 C, 1.4×109 C |
| 2. | 1.4×109 C, 1.6×109 C |
| 3. | 1.34×107 C, 1.34×107 C |
| 4. | 1.6×108 C, 1.6×107 C |
Subtopic: Electric Charge |
69%
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If 109 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: Electric Charge |
58%
From NCERT
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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: Electric Charge |
65%
From NCERT
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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: Electric Charge |
65%
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- 1(current)
Q. No.
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