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Questions and Answers
What is the main function of a circuit breaker?
What is the main function of a circuit breaker?
- To increase the voltage in a circuit
- To conduct electricity
- To protect an electrical circuit from overcurrent/overload or short circuit (correct)
- To create electricity
What is the purpose of a common ground in an electrical system?
What is the purpose of a common ground in an electrical system?
- To provide a secure path for electrical currents in case of a short circuit (correct)
- To increase the voltage
- To reduce the wattage
- To act as a switch
Which type of plug has a grounding pole to send extra power away from a device?
Which type of plug has a grounding pole to send extra power away from a device?
- Open Circuit Plug
- Conductor Plug
- Grounded Plug (correct)
- Polarized Plug
In an electrical circuit, what is the function of a hot conductor?
In an electrical circuit, what is the function of a hot conductor?
What is the role of a ground conductor in connecting equipment to the earth?
What is the role of a ground conductor in connecting equipment to the earth?
What is the function of a polarized plug?
What is the function of a polarized plug?
Which component is responsible for enabling charged electrons to do work in an electrical circuit?
Which component is responsible for enabling charged electrons to do work in an electrical circuit?
What is the primary function of an open circuit?
What is the primary function of an open circuit?
Which type of conductor carries current from the power source to the equipment?
Which type of conductor carries current from the power source to the equipment?
What is the role of a common ground in case of a short circuit?
What is the role of a common ground in case of a short circuit?
Which device is designed to protect an electrical circuit from damage caused by overcurrent or short circuit?
Which device is designed to protect an electrical circuit from damage caused by overcurrent or short circuit?
What is the unit of electrical power equal to one amperage under the pressure of one volt?
What is the unit of electrical power equal to one amperage under the pressure of one volt?
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Study Notes
Electrical Circuits and Safety
- The main function of a circuit breaker is to protect an electrical circuit from damage caused by overcurrent or short circuit.
Grounding and Polarization
- A common ground in an electrical system ensures that all equipment is connected to the earth, providing a safe path for electricity to flow in case of a fault.
- A grounding pole in a plug sends extra power away from a device, ensuring safety.
- A polarized plug has one prong larger than the other, ensuring correct polarity and preventing electrical shock.
Conductors and Circuits
- A hot conductor is a wire that carries current from the power source to the equipment in an electrical circuit.
- A ground conductor connects equipment to the earth, providing a safe path for electricity to flow.
Circuit Functionality
- The primary function of an open circuit is to prevent electricity from flowing, usually for safety or maintenance purposes.
Electrical Power
- The unit of electrical power, equal to one amperage under the pressure of one volt, is the watt (W).
Electrical Safety Devices
- A circuit breaker is designed to protect an electrical circuit from damage caused by overcurrent or short circuit.
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