Math, asked by anshuman43, 1 year ago

hey mates.. pls answer with reason ??​

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Answered by sarithaGullapalli
0

bulb a will fuse because it given more charge


anshuman43: pls explain more deatilly friend
samu3003: Hey are u in 10th
anshuman43: hmm
anshuman43: hey pls explain.. detaillly by editing your answer
sarithaGullapalli: I am 8th class
Answered by WavelessSymphony
1
I’m in 10th too so don’t expect this to be perfect. But,
Current(I)=V^2/P

In Bulb A,
V-220V
P-50W

Therefore, I=220*220/50
I=968 A

In Bulb B,
V-220V
P-100W

Therefore, I=220*220/100
I=474 A


Since, A utilises a higher amount of current, for safety purposes A will be the bulb which gets the fuse.

WavelessSymphony: I’m pretty sure it’s right. However, please feel free to correct me.
samu3003: But R=V^2/P
anshuman43: I= P/V
anshuman43: can we apply this formula
yathinabhisista: see we use P = V^2 / R only in parallel combination not in series
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