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| 1. |
5. Assertion – metals such as copper and aluminium have high electrical conductivity. Reasoning – copper has greater conductivity compared to aluminium. |
| Answer» ALUMINUM has 61 percent of the conductivity of copper, but has only 30 percent of the weight of copper. That means that a bare wire of aluminum weighs half as much as a bare wire of copper that has the same electrical resistance. Aluminum is generally more INEXPENSIVE when compared to copper CONDUCTORS. | |