A coil of copper wire has a resistance of 100 ohm at 40 deg. cel.Calculate its resistance at 100 deg. cel. given that the temperature coefficienct at 0 deg. ce. is 0.00427 per deg. cel.
Answers
Answered by
0
Explanation:
Given,
R
T
=4.2ohm
T=100
0
C
α=0.004/
0
C
T
0
=0
0
C
ΔT=T−T
0
=100−0=100
0
C
The resistance, R
T
=R
0
(1+αΔT)
R
0
=
(1+αΔT)
R
T
R
0
=
(1+0.004×100)
4.2
=3Ω
Similar questions