# What Happens If The Switch Is Closed In A Series Circuit

By | March 19, 2023

If you've ever taken a basic introductory course in electricity, you know that a series circuit is one in which the components are connected in a line and the current has to pass through each component before it reaches any other component. But what happens if the switch is closed in a series circuit?

Closing the switch in a series circuit will cause the current to flow from the power source to the rest of the components in the circuit. This is because the path of least resistance is closed when the switch is closed, allowing the electricity in the circuit to flow through the components connected in a line. This means that all of the components in the series circuit are now conducting electricity, and the current will travel through each one of them in turn.

The current in a series circuit is also affected by the resistances and inductances present in the circuit. The presence of these components means that the current must pass through them before it can reach any other component. This means that the total resistance of the circuit is the sum of all the individual resistances present in the circuit, which can cause the current to be reduced as it passes through each component.

In addition to the effect on the current, closing the switch in a series circuit can also affect the voltage in the circuit. The voltage in a series circuit is equal to the sum of the individual voltages of each component in the circuit. This means that when the switch is closed, the voltage will be equal to the sum of the voltages of each component in the circuit.

Finally, closing the switch in a series circuit affects the power of the circuit. The power of a series circuit is the product of the current and the voltage. So, when the switch is closed in a series circuit, the power is equal to the product of the current and the voltage in the circuit.

In conclusion, closing the switch in a series circuit affects the current, voltage, and power of the circuit. The current is reduced due to the presence of resistances and inductances in the circuit, while the voltage and power are determined by the individual voltages and currents in the circuit. Knowing how to calculate and use these values is a valuable skill for engineers and electronics hobbyists alike.

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