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.
