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Questions and Answers
True or false: Adding another bulb in the circuit will decrease the overall resistance of the circuit.
False
True or false: A resistor opposes the flow of current in a circuit.
True
True or false: The combined resistance of two bulbs in series is equal to the sum of their individual resistances.
True
True or false: Ohm's law defines resistance as the ratio of voltage to current.
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True or false: A nichrome filament used in a toaster is an example of a resistance.
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True or false: When the switch is in the on position, the single bulb in the circuit glows?
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True or false: Two resistances can be combined in series and parallel?
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True or false: Ohm's law defines resistance as the ratio of voltage to current?
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True or false: Adding another bulb in the circuit will increase the overall resistance of the circuit?
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True or false: A resistor opposes the flow of electric current?
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Study Notes
Electricity and Resistance
- A simple circuit with a single bulb is a basic electric circuit where the bulb glows when the switch is in the on position.
- The bulb is called a resistor because it opposes the flow of current in the circuit.
Resistance
- A resistance or resistor is something that opposes the flow of electric current.
- Examples of resistances or resistors include a bulb, a nichrome filament used in a toaster, and small resistors seen in a school lab.
- Resistance is defined as the ratio of voltage to current according to Ohm's Law.
Combination of Resistances
- There are two ways to combine resistances: series and parallel.
- The combination of resistances can be achieved by adding multiple bulbs to a circuit.
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Description
"Electric Circuits Quiz: Adding Resistance in Series and Parallel" Test your knowledge on connecting multiple bulbs in an electric circuit, exploring series and parallel combinations. Learn the effects of adding resistance and how it impacts current flow and bulb brightness.
