Question
The sum of the emfs and potential difference around a closed loop equals zero" is a consequence of:
a) Newton's third law
b) Ohm's law
c) Newton's second law
d) conservation of energy
e) conservation of charge
For this question: I had picked d conservation of energy but now I am thinking that that is conservation of charge (e) because emf reads the voltage and pontential difference deals with the energy to push a molecule. Could you please help clarify why d would be a better choice. I am still slighly confused.
Thank you
Potential is a measure of energy, with a charge moving, it is work. The emf difference around a loop it true even if NO charge is flowing, ie, it is true even in an open circuit.
a) Newton's third law
b) Ohm's law
c) Newton's second law
d) conservation of energy
e) conservation of charge
For this question: I had picked d conservation of energy but now I am thinking that that is conservation of charge (e) because emf reads the voltage and pontential difference deals with the energy to push a molecule. Could you please help clarify why d would be a better choice. I am still slighly confused.
Thank you
Potential is a measure of energy, with a charge moving, it is work. The emf difference around a loop it true even if NO charge is flowing, ie, it is true even in an open circuit.