InterviewSolution
Saved Bookmarks
| 1. |
An electric oven of 2 kW power rating is operated in a domestic electric circuit (220 V) that has a current rating of 5 A. What result do you expect? Explain. |
|
Answer» <P> Solution :POWER, `P=2kW=2xx1000W=2000W`Voltge, `V=220V` CURRENT drawn, `I=?` Power, `P=V xx I` `I=(P)/(V)=(2000)/(220)` `=9A` (approx) The current drawn by this electric oven is 9A whereas the fuse in the circuit is only 5 A capacity. When a high current of 9 A flows throughthe 5 A fuse, the fuse will get heated too much, MELT and break the circuit. Therefore, when a 2 kW power rating electric oven is operated in a circuithaving 5 A fuse, the fuse will blow off cutting off the power supply in this circuit. |
|