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| Q. |
The nature of .fuse wire is – |
| A. | high resistance and low melting point. |
| B. | high resistance and high melting point. |
| C. | low resistance and high melting point. |
| D. | low resistance and low melting point. |
| Answer» A. high resistance and low melting point. | |
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Explanation: A fuse or fusable link works by opening an electrical circuit when the current becomes too high. As the current increases, the temperature of the wire increases. So a fuse wire should have a low melting point and should beconnected in series with the appliance. Besides, it should have a comparatively high resistance. |
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