Physics

Grade-9

Easy

Question

# What is the equivalent resistance of a series combination of three resistors?

- R
_{s}= R_{1} + R_{2} + R_{3} - R
_{s} - R
_{s} - R
_{s}

_{s}= R_{1}+ R_{2}+ R_{3}_{s}_{s}_{s}Hint:

- Total resistance is the algebraic sum of the resistance across each resistor in series circuit

## The correct answer is: R_{s}= R_{1} + R_{2} + R_{3}

- In a series circuit, all the components are arranged in a single line. In a parallel circuit, all the components are arranged parallel to each other. If more than one resistor is connected in series, the voltage across each resistor is not the same though the current flow is the same throughout the circuit.
- Total resistance is the algebraic sum of the resistance across each resistor in series circuit
- So Rs= R1 + R2 + R3

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