Using a multimeter to test the voltage across the battery and each resistor in a series circuit, what would you expect according to Kirchhoff's loop rule?

Question

(1 point)
A. The voltage across the battery will be equal to the
sum of the voltages across each resistor.
B. The voltage across the battery is the same as what the label on the battery says.
C. The voltage across the battery will be equal to the product of the voltages across each resistor.
D. The current is the same as the voltage.

Answer 1

According to Kirchhoff's loop rule, the voltage around any closed loop in a circuit must sum to zero. This means that the total voltage provided by the battery will be equal to the sum of the voltages across each component in the loop, which in this case are the resistors.

Therefore, the correct answer is:

A. The voltage across the battery will be equal to the sum of the voltages across each resistor.

This reflects the principle that the total energy supplied by the battery is used up by the resistors in the circuit.