Which is an example of a load in an electric circuit?(1 point)
Responses
wiring
wiring
speaker
speaker
9-volt battery
9-volt battery
on-off lever
speaker
Which of the following best describes an electric circuit that powers a load?(1 point)
Responses
Electric current is generated in a conductor and flows through wires to a load.
Electric current is generated in a conductor and flows through wires to a load.
Electric current flows from an energy source through a conductor to a load and back to the energy source.
Electric current flows from an energy source through a conductor to a load and back to the energy source.
Electric current flows from an energy source directly to the load.
Electric current flows from an energy source directly to the load.
Electric current flows from an energy source through a conductor and back to the energy source.
Electric current flows from an energy source through a conductor and back to the energy source.
Electric current flows from an energy source through a conductor to a load and back to the energy source.
Hal makes an electromagnet with a 9-volt battery, wire, and a steel rod. What is the function of electric current in his electromagnet? (1 point)
Responses
Electric current determines the strength of the magnet.
Electric current determines the strength of the magnet.
Electric current attracts or repels charged objects.
Electric current attracts or repels charged objects.
Electric current powers the electromagnet.
Electric current powers the electromagnet.
Electric current creates a magnetic field that charges the rod.
Electric current powers the electromagnet.
What is the function of the core of an electromagnet?(1 point)
Responses
The core is the part that becomes magnetized.
The core is the part that becomes magnetized.
The core is the flow of electrons that charges the magnet.
The core is the flow of electrons that charges the magnet.
The core provides the magnet with electric energy.
The core provides the magnet with electric energy.
The core provides the conductor through which electric current flows.