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10 identical cells are connected in series to heat the wire of length 1m and radius r by 10 C at time t. How many cells are required to heat the wire of length 2m of same radius by the same temperature at time t? |
| Answer» 10 identical cells are connected in series to heat the wire of length 1m and radius r by 10 C at time t. How many cells are required to heat the wire of length 2m of same radius by the same temperature at time t? | |