Answer
a) The following is the formula for calculating the amount of heat produced:
I2Rt = H
b) Assumed
R equals 20
5 amps = I
t = 30 seconds
We are aware of this.
I2Rt = H
We know H = 15000J by substituting the numbers we get.
Q10. a) Write down the formula for the heat produced when a current I is passed through a resistor R for time t. b) An electric iron of resistance 20 ohms draws a current of 5 amperes. Calculate the heat produced in 30 seconds.
Q10. a) Write down the formula for the heat produced when a current I is passed through a resistor R for time t. b) An electric iron of resistance 20 ohms draws a current of 5 amperes. Calculate the heat produced in 30 seconds.