What happens to the voltage in a series circuit as resistors are added?

Prepare for the ASTB Mechanical Comprehension Exam. Focus on understanding technical skills with targeted questions, detailed explanations, and useful hints. Enhance your readiness for success!

In a series circuit, the voltage is divided among all the resistors present in the circuit. When additional resistors are added, each resistor will take a share of the total voltage supplied by the power source, resulting in a decrease in the voltage across each individual resistor. The total voltage across the circuit remains constant, dictated by the power supply, but the voltage drop across each resistor adds up to this total.

As more resistors are added, the overall resistance of the circuit increases due to the series configuration, which causes a decrease in the total current flowing through the circuit according to Ohm's Law (V = IR). Since the total voltage is constant, but the voltage is now shared among more resistors, the voltage across each individual resistor decreases. Therefore, as resistors are added to a series circuit, the voltage available across each individual resistor decreases.

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