PDF chapter test TRY NOW
Read the options and select the best one:
1.
| Assertion (A): | Tungsten is commonly used as a filament in electric bulbs. |
| Reason (R): | Tungsten has high resistivity. |
2.
| Assertion (A): | Fuse prevents damages to electrical appliances due to excess current flow. |
| Reason (R): | Instead of fuses, an element is used in the main box. |
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