dipoles
Two-pole arrangements
A dipole is a pair of equal and opposite electric charges or magnetic poles separated by a distance.
In physics and chemistry, molecules with uneven charge distribution are called polar because they have dipole moments—the positive and negative ends create a tiny internal separation: Water is a dipole, which explains many of its unusual properties.
A dipole antenna has two elements extending in opposite directions from a central feed point.
Atomic electron attraction strength
- water moleculeBonded oxygen-hydrogen trio
- hydrogen bondingIntermolecular dipole attraction
- asymmetryAbsence of balanced form
- covalent bondShared-electron atomic link
solubility · hydrophilic · van der Waals · miscibility · chemical bonding
Electromagnetic broadcast frequency
- transmitterSignal-emitting device
- receiverOne who accepts transmission
- broadcastTransmitted media signal
- signalMessage-conveying cue
frequency · wireless · feedline · impedance · bandwidth · tuning · VHF · UHF
Region affecting nearby charges
- dielectricPolarizable electrical non-conductor
- momentBrief period of time
- coulombUnit of electrical charge
- electrostaticOf stationary electrical charges
alignment · orientation · field lines · potential · torque · nonpolar
Strong atomic magnetic alignment
- spinRapid rotation around axis
- electron spinQuantum angular momentum property
- magnetic fieldForce zone around magnets
- fluxContinuous change or flow
magnetization · bar magnet · compass needle · domain · lodestone · paramagnetism · diamagnetism · torque
electronegativity
Atomic electron attraction strength
- water moleculeBonded oxygen-hydrogen trio
- hydrogen bondingIntermolecular dipole attraction
- asymmetryAbsence of balanced form
covalent bond · solubility · hydrophilic · van der Waals · miscibility · chemical bonding
radio wave
Electromagnetic broadcast frequency
- transmitterSignal-emitting device
- receiverOne who accepts transmission
- broadcastTransmitted media signal
signal · frequency · wireless · feedline · impedance · bandwidth · tuning · VHF · UHF · HF
electric field
Region affecting nearby charges
- dielectricPolarizable electrical non-conductor
- momentBrief period of time
- coulombUnit of electrical charge
electrostatic · alignment · orientation · field lines · potential · torque · nonpolar
ferromagnetism
Strong atomic magnetic alignment
- spinRapid rotation around axis
- electron spinQuantum angular momentum property
- magnetic fieldForce zone around magnets
flux · magnetization · bar magnet · compass needle · domain · lodestone · paramagnetism · diamagnetism · torque · precession
- magnetismmagnet, magnetic field, magnetic fields, magnetic poles, ferromagnetism
- electricityelectricity, battery, batteries, wire, wires