Question

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​

Answer 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

HOPE IT'S HELPFUL TO YOU

Answer 2

Answer:

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