Question

While moving in the direction of current through a resistor, how is the potential change treated?

Options

• Potential increases, so the term is positive

• The term is always a positive emf

• Potential decreases, so the term is negative

• Potential stays unchanged, so the term is zero

Answer 1

Moving through a resistor in the direction of current corresponds to a potential decrease. The term is therefore taken as negative in KVL.