Electronics 1 Definitions

Kilowatt-hours is

1kWh = 1kW • 1h or 1000W • 1h Your electric bill is billed in Kilowatt-hours

The Symbol or abbreviation for the measurement of current is

A

Symbol or abbreviation for an Ampere-hour is

Ah

Current is measured in units called

Amps or Amperes

Definition of Coulomb

Coulomb is the unit of electric charge. 1C = 6.241 × 1018 electrons. C=A*s Amperes * seconds

The definition of current

Current is the flow of electrons past a given point in a given amount of time. 1Ampere = 1Coulomb / 1second

Symbol or abbreviation for the physical quantity of Conductance

G

Symbol or abbreviation for the physical quantity of current is

I

An Ampere-hour is

One ampere-hour is the electric charge that flows in an electrical circuit, when a current of 1 ampere is applied for 1 hour.

Symbol or abbreviation for the physical quantity of power is

P

The symbol for a quantity of charge is

Q, q

Symbol or abbreviation for the physical quantity of resistance is

R

The symbol for a Siemens is

S

Series-aiding sources are connected

Series-aiding sources are connected end-to-end, positive-to-negative, and the total voltage is the sum of all the individual values.

Series-opposing means that sources are connected

Series-opposing means that sources are connected such that some cancel out part of the net value of the others. Either positive to positive, or negative to negative.

Conductance is measured in units called

Siemens

Definition of Conductance

The ease with which electric current flows through a substance. It is the opposite of resistance. G = 1/R or 1S = 1 / 1Ω

Direct current

The flow of electric charge is only in one direction.

Alternating current

The flow of electric charge periodically reverses direction.

Definition of difference of potential

The pressure or force that causes electrons to move. Remember voltage, difference of potential and electromotive force (EMF) are the same. One volt is the energy of 1 joule that is consumed when an electric charge of 1 coulomb flows in the circuit.

Definition of electromotive force (EMF)

The pressure or force that causes electrons to move. Remember voltage, difference of potential and electromotive force (EMF) are the same. One volt is the energy of 1 joule that is consumed when an electric charge of 1 coulomb flows in the circuit.

Definition of voltage

The pressure or force that causes electrons to move. Remember voltage, difference of potential and electromotive force (EMF) are the same. One volt is the energy of 1 joule that is consumed when an electric charge of 1 coulomb flows in the circuit.

Definition of power is

The rate at which energy is transferred, used, or transformed. 1 Watt is equal to one joule per second. One horsepower is equivalent to 746 watts.

Symbol or abbreviation for the physical quantity of electromotive force (EMF).

V or E. V is a voltage drop. E is voltage as source

The Symbol or abbreviation for the measurement of volts is

V or E. V is a voltage drop. E is voltage as source

Symbol or abbreviation for the physical quantity of difference of potential.

V or E. V is a voltage drop. E is voltage as source.

Symbol or abbreviation for the physical quantity of voltage.

V or E. V is a voltage drop. E is voltage as source.

The symbol or abbreviation for Watts is

W 1 Watt is equal to one joule per second. One horsepower is equivalent to 746 watts.

Power is measured in units called

Watts

Symbol or abbreviation for alternating current is

ac

Symbol or abbreviation for direct current is

dc

Symbol or abbreviation for Kilowatt-hours is

kWh

Resistance is measured in

ohms

The definition of resistance.

resistance is the opposition to the flow of electrons. R = 1/G or 1Ω = 1 / 1S

The Symbol or abbreviation for ohms is

the Greek letter omega Ω

Difference of potential is measured in units called.

volts. Remember voltage, difference of potential and electromotive force (EMF) are the same.

Electromotive force (EMF) is measured in units called.

volts. Remember voltage, difference of potential and electromotive force (EMF) are the same.

Voltage is measured in units called.

volts. Remember voltage, difference of potential and electromotive force (EMF) are the same.