What is a closed loop of conductors through which charges flow? a. an insulator b. a circut c. a conductor d. a switch

B. a circuit

Explanation:

Circuit:  a circuit is a closed part through which charge flow.

There are different circuit element the include

Resistor: A resistor is a electrical device that has the ability to resist the flow of electric current in a circuit.

Capacitor: A capacitor is an electrical device that has the ability to store charges in a circuit.

Inductor: An inductor is an electrical device that has the ability to store

electric energy, in form of magnetic energy.

These circuit elements can either be connected in series or it can be connected in parallel.

MEASURING DEVICE IN A CIRCUIT:

Voltmeter: This is used to measure voltage in a circuit. And is connected parallel to the circuit

Ammeter: This is used to measure current in a circuit. And it is connected in series to the circuit.

b.transmitters send radio waves, and receivers capture radio waves.

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.