Which one of the following is a statement of KirchhofFs voltage law?

• The total voltage in a parallel circuit is less than the value of the smallest voltage
• The algebraic sum of voltages in a loop is equal to zero
• The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it
• The algebraic sum of voltages entering and leaving a point is equal to zero
• None of the above