what will be the heat generated in an instrument of resistance 100ohw is connected to apotential of 230V
If the time of flow is 5 minute
If the time of flow is 10 minute
Answers
Answered by
1
V=230 volts
Initial current, I
1
=3.2 A
R=V/I
1
=71.9Ω
steady state current,
I
2
=2.8 A
R
2
=230/2.8=82.14Ω
α=1.7×10
−4
,T
1
=27
o
C
coefficient of resistanceα=
R
1
(T
2
−T
1
)
R
2
−R
1
⇒T
2
=867.5
o
C
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Answered by
1
Answer:
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