MCQOPTIONS
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| 1. |
Water boils in the electric kettle in 15 minutes after switching on. If the length of heating wire is decreased to 2/3 of its initial value, then the same amount of water will boil with the same supply voltage in |
| A. | 8 minutes |
| B. | 10 minutes |
| C. | 12 minutes |
| D. | 15 minutes |
| Answer» C. 12 minutes | |