Electric Power and DC Circuits Worksheet
Explore the fundamentals of electric power and direct current circuits with this Grade 11 physics worksheet, covering Ohm's Law, power calculations, series, and parallel circuits.
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Electric Power and DC Circuits
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Read each question carefully and answer to the best of your ability. Show all work for calculation problems.
1. Which of the following statements correctly defines electric power?
The total energy consumed by a circuit.
The rate at which electric energy is converted into other forms of energy.
The amount of charge flowing through a circuit per second.
The resistance of a circuit multiplied by the current.
2. In a series circuit, what happens to the total resistance as more resistors are added?
It decreases.
It increases.
It remains the same.
It depends on the resistance values.
3. Ohm's Law states that voltage is directly proportional to and .
4. The unit of electric power is the .
5. Explain the difference between a series circuit and a parallel circuit in terms of current flow and voltage drops.
6. A circuit has a 12V battery and a total resistance of 4 Ohms. Calculate the current flowing through the circuit.
7. In a parallel circuit, if one bulb burns out, the other bulbs will also go out.
True
False
8. Electric power is calculated by multiplying voltage by current.
True
False
9. A 60W light bulb is connected to a 120V power source. Calculate the current flowing through the bulb and its resistance.
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