Electricity - Definitions

Question 1

Conventional current

Answer 1

The flow of positive charge from the positive terminal, through the external circuit, to the negative terminal

Question 2

Electron flow

Answer 2

The flow of electrons from the negative terminal, through the external circuit, to the positive terminal

Question 3

Current

Answer 3

The amount of charge passing a point in a circuit every second

Question 4

EMF

Answer 4

The total charge supplied per coulomb of charge by the cell

Question 5

Resistance

Answer 5

A materials opposition to the flow of electric current

Question 6

Ohm’s Law

Answer 6

Current through a conductor is directly proportional to the potential difference across the conductor at constant temperature

Question 7

Diode

Answer 7

An electric component that allows current to flow in one direction in a circuit

Question 8

Kirchhoff’s Law of Voltage

Answer 8

Around any closed loop in a circuit, the sum of the voltage drops is equal to the EMF

Question 9

Kirchhoff’s Law of Current

Answer 9

The sum of the current flowing into any point equals the sum of the current flowing out from the point

Question 10

Electric work

Answer 10

The work done on a charged particle by an electric field

Question 11

Electrical Power

Answer 11

The rate at which work is done // the rate at which energy is transferred