Science, asked by sureshpuri101970, 11 months ago

calculate the heat produced in calorie when a current of 0.1 ampere is passed through a wire of resistance 41.8 ohms for 5 minut​

Answers

Answered by zahaansajid
15

I = 0.1A

R = 41.8 ohm

t = 5min = 5×60 sec

H = I²Rt

H = (0.1)²×41.8×5×60 = 125.4J

1 Cal = 4.18J

1J = 1/4.18 Cal

125.5J = 125.4/4.18 = 30Cal

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Answered by Anonymous
20

 \huge \sf \fcolorbox{red}{pink}{Solution :)}

Given ,

Current = 0.1 amp

Resistance = 41.8 ohm

Time = 5 min or 300 sec

We know that ,

 \sf \large \fbox{H =  {(I)}^{2} RT}

Substitute the known values , we get

 \sf \hookrightarrow H =  {(0.1)}^{2}  \times 41.8 \times 300 \\  \\ \sf \hookrightarrow   H = 125.4 \:  \: joule

To convert joule to calorie , divide the joule value by 4.18

 \sf \hookrightarrow H =  \frac{125.4}{4.18}  \\  \\ \sf \hookrightarrow  H =  30 \:  \: calorie

Hence , the heat produced in wire is 30 calorie

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