1.What are the two conditions needed to produce an electric current?

2.What happens to current at a junction within a
circuit?

Can someone please help with this physic circuits type questions

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.