**Units prefix table**

Prefix

pico

Prefix Symbol

p

Prefix factor

10^{-12}

Example

1pF = 10^{-12}F

Prefix

nano

Prefix Symbol

n

Prefix factor

10^{-9}

Example

1nF = 10^{-9F}

Prefix

micro

Prefix Symbol

μ

Prefix factor

10^{-6}

Example

1μA = 10^{-6}A

Prefix

milli

Prefix Symbol

m

Prefix factor

10^{-3}

Example

1mA = 10^{-3}A

Prefix

kilo

Prefix Symbol

k

Prefix factor

10^{ 3}

Example^{}

1kΩ = 1000Ω

Prefix

mega

Prefix Symbol

M

Prefix factor

10^{ 6}

Example^{}

1MHz = 10^{6}Hz

Prefix

giga

Prefix Symbol

G

Prefix factor

10^{ 9}

Example^{}

1GHz = 10^{9}Hz

**Electrical units **__definitions__

**Volt (V)**

Volt is the electrical unit of voltage.

One volt is the energy of 1 joule that is consumed when electric charge of 1 coulomb flows in the circuit.

1V = 1J / 1C

**Ampere (A)**

Ampere is the electrical unit of electrical current. It measures the amount of electrical charge that flows in an electrical circuit per 1 second.

1A = 1C / 1s

**Ohm (Ω)**

Ohm is the electrical unit of resistance.

1Ω = 1V / 1A

**Watt (W)**

Watt is the electrical unit of electric power. It measures the rate of consumed energy.

1W = 1J / 1s

1W = 1V ⋅ 1A

**Decibel-milliwatt**** (dBm)**

Decibel-milliwatt or dBm is a unit of electric power, measured with logarithmic scale referenced to 1mW.

10dBm = 10 ⋅ log_{10}(10mW / 1mW)

**Decibel-Watt**** (****dBW****)**

Decibel-milliwatt or dBm is a unit of electric power, measured with logarithmic scale referenced to 1W.

10dBW = 10 ⋅ log_{10}(10W / 1W)

**Farad (F)**

Farad is the unit of capacitance. It represents the amount of electric charge in coulombs that is stored per 1 volt.

1F = 1C / 1V

**Henry (H)**

Henry is the unit of inductance.

1H = 1Wb / 1A

**siemens**** (S)**

siemens is the unit of conductance, which is the opposite of resistance.

1S = 1 / 1Ω

**Coulomb (C)**

Coulomb is the unit of electric charge.

1C = 6.238792×10^{18} electron charges

**Ampere-hour**** (Ah)**

Ampere-hour is a unit of electric charge.

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

1Ah = 1A ⋅ 1hour

One ampere-hour is equal to 3600 coulombs.

1Ah = 3600C

**Tesla (T)**

Tesla is the unit of magnetic field.

1T = 1Wb / 1m^{2}

**Weber (****Wb****)**

Weber is the unit of magnetic flux.

1Wb = 1V ⋅ 1s

**Joule (J)**

Joule is the unit of energy.

1J = 1 kg ⋅ 1(m / s)^{2}

**Kilowatt-hour**** (kWh)**

Kilowatt-hour is a unit of energy.

1kWh = 1kW ⋅ 1h = 1000W ⋅ 1h

**Kilovolt-amps**** (****kVA****)**

Kilovolt-amps is a unit of power.

1kVA = 1kV ⋅ 1A = 1000 ⋅ 1V ⋅ 1A

**Hertz (****Hz****)**

Hertz is the unit of frequency. It measures the number of cycles per second.

1 Hz = 1 cycles / s

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