Corriente eléctrica (física)

The video tutorial explains how current flows in wires through negative electrons and in liquids through charged ions. It discusses the conventional direction of current flow, which is the direction of positive charge movement. The tutorial also covers how current is measured using an ammeter and introduces the ampere as the unit of current, defined as one coulomb of charge passing a point per second.

What is the role of negative electrons in wires?

• They neutralize positive charges.

• They block the flow of current.

• They are the carriers of current.

• They create resistance.

How is current produced in liquids?

• By the movement of charged ions.

• By the movement of neutral particles.

• By the movement of electrons only.

• By the movement of protons only.

In which direction does the conventional current flow?

• Opposite to the motion of positive charge.

• In the direction of the motion of positive charge.

• In the direction of the motion of negative charge.

• Opposite to the motion of negative charge.

What instrument is used to measure electric current?

• Voltmeter

• Ohmmeter

• Ammeter

• Thermometer

What is one ampere equivalent to?

• One coulomb of charge passing through a point per second.

• One coulomb of charge passing through a point per minute.

• One ohm of resistance.

• One volt of potential difference.