Electrical Theory

Zoe and Nora are working on a science project about electricity. They are trying to understand a particular concept. Can you help them understand what is meant by 'current flow'?

• It is the flow of voltage in a circuit they are working on

• It is the impedance of the circuit they are working on

• It is the inductive reactance of the circuit they are working on

• It is the flow of electrons in the circuit they are working on

Benjamin, Jackson, and Rohan are studying for their electronics exam. They come across a term 'impedance'. Jackson thinks it's the opposition to alternating current flow. Benjamin thinks it's electrical pressure. Rohan thinks it's amperage. And, Benjamin's little brother thinks it's the voltage applied to the circuit. Who is correct?

• Jackson

• Benjamin

• Rohan

• Benjamin's little brother

Zoe is working on a science project and she needs to find a material that will readily release electrons. What should she use?

• An insulator

• a conductor

• a resistance

• a neutron

Avery, Anika, and Benjamin are working on a physics project. They need to measure the flow of electricity. Which symbol should they use to represent current?

• E

• I

• R

• W

Benjamin is studying about atoms and he learned that an electron has

• no charge

• a negative charge

• a positive charge

• extra electrons

Jackson, Ethan, and Lily are working on a science project involving a circuit. They are trying to understand a particular component of the circuit. What is the resistance that this component might provide?

• Opposition to current flow

• Electrical pressure

• Amperage

• Voltage applied to the circuit

Evelyn, Mason, and Benjamin are conducting an experiment in their physics class. They noticed that when they increase the voltage in their circuit, the current flow also increases. Which of the following statements about their observation is true?

• Their observation indicates that current flow is the same as voltage

• Their observation indicates that current flow will increase when voltage increases

• Their observation indicates that current flow will increase when resistance increases

• Their observation indicates that current flow will decrease when voltage increases

Ava, Harper, and Abigail are studying for their physics exam. They come across a problem where they need to determine the wattage in an electrical circuit. Which of the following formulas should they use?

• W=E x I

• W=E/R

• W=I/R

• W=ExR

Elijah is working on a project where he is using a motor. He notices that the running amperage marked on the motor data plate is lower than the calculated amperage using ohms law. Why would this be the case?

• Benjamin suggests that the voltage applied to the circuit must be 240 Volts.

• Mia thinks the electrical pressure is too low.

• Elijah wonders if the amperage marked on the motor is wrong.

• Benjamin suspects that the amperage marked on the motor is wrong.

• Mia suggests that it could be due to the impedance to current flow.

Elijah is studying a type of drawing in his engineering class that illustrates where the components are located on a home appliance. What is this type of drawing called?

• Pictorial

• Schematic

• Ladder Diagram

• Outside