Electric Power and DC Circuits Worksheet
This worksheet covers fundamental concepts of electric power and DC circuits, including Ohm's Law, power calculations, series, and parallel circuits.
Includes
Standards
Topics
Electric Power and DC Circuits
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Date:
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Read each question carefully and provide your best answer. Show all your work for calculation problems.
1. Which of the following is the correct unit for electric power?
Volt (V)
Ampere (A)
Watt (W)
Ohm (Ω)
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 first decreases then increases
3. Ohm's Law states that voltage is equal to current multiplied by .
4. In a parallel circuit, the across each component is the same.
5. Electric power can be calculated using the formula P = V * I, where P is power, V is voltage, and I is .
6. State the relationship between voltage, current, and resistance as described by Ohm's Law.
7. Explain the main difference between a series circuit and a parallel circuit in terms of current flow.
8. Analyze the simple DC circuit shown below. Calculate the total current flowing through the circuit if the voltage source is 12V and the resistor is 4Ω.
9. The total voltage in a series circuit is the sum of the individual voltages across each resistor.
True
False
10. In a parallel circuit, if one bulb burns out, the others will also go out.
True
False
11. Design a simple circuit diagram that includes a power source, a switch, and two resistors connected in parallel. Label all components clearly.
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