How is energy transferred in circuits?

List two things that convert energy in circuits

When do all resistors produce heat?

What does a higher current flow mean in a circuit?

What does a bigger voltage mean in a circuit?

If an appliance is efficient...

What is the solution for an appliance wasting a lot of heat?

What is the disadvantage of using more electrically efficient appliances?

What does the total energy transferred by an appliance depend on?

What is the power of an appliance?

What is the equation for Energy transferred?