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Q. |
Which of the following are bad conductors of electricity? |
A. | Mica and Quartz |
B. | Metals and Rubber |
C. | Metals and Mica |
D. | Mica and Rubber |
Answer» A. Mica and Quartz | |
Explanation: Metals are good conductors of electricity, because they have free electrons. Micaand quartz are examples of insulators (bad conductors of electricity), they don't have free electrons. |
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