two devices of rating 22w, 220v and 11w.220v are connected in series. the combination is connected across a 440v main. the fuse of which of the two devices is likely to burn when the switch is on? justify your answer
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Answer:
Of course Both The fuses will burn Practically,But The fuse of the device having 22W,220V will burn (First)
Explanation:
Because It's resistance is low And it's Safety limit of current is very low compared to the other one ,so an current having 440V passing through it will burn the fuse.
[Given:Calculate Safety limit Using I=P/V & Resistance using R=V²/P.]
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