Electrical Engineering

How do you install a resistor in an DC circuit?

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Wiki User
10/11/2007

It depends on the purpose for installing the resistor. If the intent is to decrease current flow, the resistor must be connected in series with the load. If the purpose is to increase current flow, the resistor must be connected in parallel with the load.

To connect a resistor in series, connect the resistor to one side of the power source, in line with the load. This will decrease circuit current flow.

To connect a resistor in parallel, connect the resistor between the positive and negative sides of the power source, which will effectively connect the resistor across the load . This will increase current flow through the circuit. However, before connecting a component in parallel, make sure the increase in current flow will not exceed the current rating of the circuit or fuses/breakers will blow.