Basic Concepts of Electricity and Circuits

These flashcards cover basic concepts of electricity, circuits, and static electricity.

What are the four basic components of a circuit?

1. Source 2. Conductors 3. Load 4. Switch

What is the purpose of a switch in a circuit?

It turns the circuit on or off.

What is an ammeter used for?

An ammeter measures the electric current in a circuit.

What does 'conventional current' refer to?

It describes the flow of current from positive to negative, based on historical understanding, although electrons actually flow from negative to positive.

What is electrical resistance measured in?

Ohms (Ω).

What device measures the potential difference across a battery?

A voltmeter.

What is electric potential energy (Ep)?

It is the electrical energy stored in electrons, which have the ability to do work.

What parts make up a dry cell battery?

Positive terminal (cathode), negative terminal (anode), electrolyte, separator.

How do charged objects interact with neutral objects?

Charged objects can attract neutral objects due to induced charges.

What happens when two charged objects with the same charge come close to each other?

They repel each other.

What is the definition of charge in physics?

Charge is a property of matter that causes it to experience a force when placed in an electromagnetic field.