Equivalent Resistance Worksheet
This worksheet covers concepts of series and parallel circuits and calculating equivalent resistance for Grade 8 science students.
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Equivalent Resistance Worksheet
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Read each question carefully and answer to the best of your ability. Show your work for calculation problems.
1. In a series circuit, what happens to the total resistance as more resistors are added?
It decreases.
It increases.
It stays the same.
It depends on the voltage.
2. Which type of circuit has multiple paths for current to flow?
Series circuit
Parallel circuit
Simple circuit
Closed circuit
1. The equivalent resistance of resistors in series is always less than the smallest individual resistance.
True
False
2. In a parallel circuit, if one resistor breaks, the entire circuit will stop working.
True
False
1. The unit of electrical resistance is the .
2. In a series circuit, the current is through all components.
3. The formula for calculating equivalent resistance in a parallel circuit is 1/Req = 1/R1 + 1/R2 + .
1. Calculate the equivalent resistance of two resistors, 10 Ω and 20 Ω, connected in series.
2. Calculate the equivalent resistance of two resistors, 10 Ω and 20 Ω, connected in parallel.
Analyze the circuit diagram below.
1. Is the circuit above a series or parallel circuit? Explain your reasoning.