Check sibling questions

Write the mathematical expression for Joule’s law of heating.

 

Answer:

Joule’s law of heating states that the heat produced in a conductor is directly proportional to 

(i) the square of  the current I through it, 

(ii) its resistance R and 

(iii) the time t , for which current is passed.

Therefor, the mathematical expression of Joule’s law of heating is: 

     H = I 2 Rt  

Where, 

  • H = Produced Heat  
  • I = Current flowing through the device  
  • t = Time of current flow  
  • R = Resistance of the appliance 

 

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CA Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Economics, Accounting and English at Teachoo