Equivalent Resistance Worksheet
Grade 12 Physics worksheet covering series and parallel circuits, calculating equivalent resistance, and applying Ohm's Law.
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Equivalent Resistance Worksheet
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Read each question carefully and provide your answers in the space provided. Show all your work for calculations.
1. In a series circuit, what happens to the total resistance as more resistors are added?
It decreases
It increases
It remains the same
It becomes zero
2. Which of the following statements is true for resistors connected in parallel?
The current is the same through each resistor.
The voltage drop across each resistor is different.
The total resistance is the sum of individual resistances.
The reciprocal of the total resistance is the sum of the reciprocals of individual resistances.
3. Ohm's Law states that voltage is equal to current multiplied by .
4. When resistors are connected in , the current is the same through each resistor.
5. Calculate the equivalent resistance of three resistors (10 Ω, 20 Ω, and 30 Ω) connected in series.
6. A parallel circuit has two resistors, 4 Ω and 6 Ω. What is the equivalent resistance of this circuit?
7. Consider the circuit diagram below:
If R1 = 5 Ω, R2 = 10 Ω, and R3 = 15 Ω, and the voltage source is 12V, calculate:
a) The equivalent resistance of the circuit.
b) The total current flowing through the circuit.
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