- 1(current)
Q. No.The variation of EMF with time for four types of generators is shown in the figures. Which amongst them can be called AC voltage?
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| (a) | (b) |
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| (c) | (d) |
Choose the correct option from the given ones:
| 1. | (a) and (d) |
| 2. | (a), (b), (c), and (d) |
| 3. | (a) and (b) |
| 4. | only (a) |
Subtopic: Â AC vs DC |
 79%
Level 2: 60%+
NEET - 2019
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In a heating arrangement, an alternating current having a peak value of \(28~\text{A}\) is used. To produce the same heat energy, if direct current is used to produce the same amount of heat, then its magnitude will be:
| 1. | about \(14~\text{A}\) | 2. | about \(28~\text{A}\) |
| 3. | about \(20~\text{A}\) | 4. | cannot say |
Subtopic: Â AC vs DC |
 57%
Level 3: 35%-60%
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- 1(current)
Q. No.
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