2. When the potential difference is 100 V, a steady current flows in a circuit 2 for 60 s. A total of 60 kJ of energy is converted into heat. What is the current in the circuit? * 3. What is the potential difference between two points on a circuit if 6.8 J of work is done while supplying a current of 20 mA for 2.0 minutes? * 2 points