Electric Circuits
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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.

<p>True</p> Signup and view all the answers

True or false: A nichrome filament used in a toaster is an example of a resistance.

<p>True</p> Signup and view all the answers

True or false: When the switch is in the on position, the single bulb in the circuit glows?

<p>True</p> Signup and view all the answers

True or false: Two resistances can be combined in series and parallel?

<p>True</p> Signup and view all the answers

True or false: Ohm's law defines resistance as the ratio of voltage to current?

<p>True</p> Signup and view all the answers

True or false: Adding another bulb in the circuit will increase the overall resistance of the circuit?

<p>True</p> Signup and view all the answers

True or false: A resistor opposes the flow of electric current?

<p>True</p> Signup and view all the answers

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.

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