Search results

12W of power a being produced in a resistor across which there is a voltage of 10V. Firstly, what is the resistance of this resistor? Secondly how much power will be produced if the voltage doubles to 20V?

2 identical heater elements are connected in series in a 240V heater, producing a total power of 480W. 1) What is the current flowing through each element? 2) What is the resistance of each element? 3) What power will be produced if they are connected in parallel instead of series?