1. What is an electric circuit?
An electric circuit is a closed loop pathway through which an electric current flows.
2. What are the components of an electric circuit?
The components of an electric circuit include a power source (such as a battery), conductors (wires), load (such as a light bulb or motor), and a switch (optional).
3. What is the purpose of a switch in an electric circuit?
A switch in an electric circuit is used to control the flow of electricity by opening or closing the circuit. It can turn a device on or off.
4. What is resistance in an electric circuit?
Resistance is the measure of how much a material or device opposes the flow of electricity. It is measured in ohms (Ω).
5. How is resistance calculated in a circuit?
Resistance can be calculated using Ohm's Law, which states that resistance (R) is equal to voltage (V) divided by current (I): R = V/I.
6. What is the difference between a series and parallel circuit?
In a series circuit, all components are connected in a single loop, so there is only one pathway for the current to flow. In a parallel circuit, components are connected in multiple branches, creating multiple pathways for the current to flow.
7. What happens if one component in a series circuit fails?
If one component in a series circuit fails, it can cause the entire circuit to stop functioning because the current cannot flow past the broken component.
8. What happens if one component in a parallel circuit fails?
If one component in a parallel circuit fails, the other components will still receive power and continue to function because they are connected in separate branches.
Electric circuits quick check
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