Question

Calculate the heat produce when 5 A current flows through a wire having resistance of 10 Ω for

20 minutes.​

Answer 1

Answer:

The answer is =60000 J

Step-by-step explanation:

given:

        current=I=5A

         resistance=R=10Ω  

          time=T=20 min=20*60=1200

heat produced=  I^2*R*T

                         =5*10*1200=  60000 J    

Answer 2

Answer:

The heat produces when 5 A current flows through a wire having a resistance of 10 Ω for  20 minutes. will be $30000\ J$

Step-by-step explanation:

• Let R be the resistance of a wire, I be the current flow through it and t be the time of flow of current.

       Then, the heat (H) produced in the wire due to the current flow will

        be directly proportional to I, R, and t.

 

• The heat (H) produced  in the wire is given by the expression,

       $H = I^2Rt$          ...(2)

   

• In the question, it is given that,

        $R =10\ \Omega$     $I = 5.0\ A$

        $t = 20\ min = 20\times60=120\ s$

       Using equation (2),

        $H = 5^2\times 10\times 120 =30000\ J$