Type: NAT
Three identical bulbs connected in series across
a supply source together dissipated power P. If
the same bulbs are connected in parallel across
the same source, they together dissipate power
np. Find the value of n.
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Answer:
n=9
Explanation:
In the case of series connection:
1. P=V^2/3R=V^2/R=3P
In case of parallel connection:
2. P'=V^2/(R/3)=3(V^2/R)
Substitute equation 1 in equation 2
3P=3X=9P
The ,n=9
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