If you double the voltage in a circuit and reduce the resistance by a factor of four, what will happen to the current?

a.)it will double
b.)it will decrease by factor of 2
c.)it will increase by a factor of 8
c.)it will decrease by a factor of 8

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.