Physics, asked by tesabol732, 9 months ago

Calculate the amount of current flowing through an electric iron of resistance 20 ohm if 1.5 kJ of heat is produced by it in 30 s.

Answers

Answered by HarshitaNaruk
1

Answer:

Explanation:

Given :-

Resistance of the iron = 20 ohm          

Current = 5 ampere          

Time = 30 seconds  

To Find :-

Heat Produced.

Formula to be used :-

Heat produced = I²RT    

Solution :-

Putting all the values, we get    

Heat produced = I²RT          

Heat produced = 25 × 20 × 30          

Heat produced = 15000 Joules.

Hence, the heat produced in 30 seconds is 15000 Joules.

Extra Information :-

One Volt Potential Difference - The potential difference between two points in an electric field is the amount of work done in bringing a unit positive charge from one point to another.

Potential Difference = Work done/Charge = W/Q

Similar questions