Question

resistors connected in series are used to _______ the resistance in a circuit ​

Answer 1

Explanation:

which shows three resistors in series with an applied voltage equal to Vab. Since there is only one path for the charges to flow through, the current is the same through each resistor. The equivalent resistance of a set of resistors in a series connection is equal to the algebraic sum of the individual resistances.

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Answer 2

Resistors connected in series are used to increase resistance in a circuit.

Explanation:

• Resistors are passive electrical components.
• It provides opposition to the current flow in electrical circuits.

Series connection:

• The equivalent of resistances is the addition of all individual resistances.
• The current remains same in all resistors but voltage is divided.

$R_{total} =R_{1} +R_{2} +R_{3}$

Parallel connection:

• The reciprocal of equivalent resistance is equal to the sum of reciprocal of all individual resistances.
• So, voltage remains same across all resistors but current is divided.

$\frac{1}{R_{Total} } =\frac{1}{R_{3} } +\frac{1}{R_{2} } +\frac{1}{R_{3} }$

So, in parallel connection total resistance decreases whereas in series connection, total resistance increases.