They are often used interchangably, but gravitation often refers to the theory or concept of gravity in general, and is more often than not used in its adjectival form gravitational. Gravity often refers the gravitational field itself (a vector quantity or its magnitude). For example, being on earth, you are subject to the force of gravity. Your weight is a gravitational effect. Also, gravity tends to be the term of choice in Newton's (field) theory of gravity. Gravitation tends to be the term of choice in general relativity, in which there is no gravity field, per se.
what is the technical difference between "Gravity" and "Gravitation"?
They are often used interchangably, but gravitation often refers to the theory or concept of gravity in general, and is more often than not used in its adjectival form gravitational. Gravity often refers the gravitational field itself (a vector quantity or its magnitude). For example, being on earth, you are subject to the force of gravity. Your weight is a gravitational effect. Also, gravity tends to be the term of choice in Newton's (field) theory of gravity. Gravitation tends to be the term of choice in general relativity, in which there is no gravity field, per se.
What is Insulation Resistance, Dielectric Absorption, Polarization Index
INSULATION RESISTANCE
Insulation Resistance is the resistance offered by insulator separating two electrodes. The value determines quality of insulation.
POLARIZATION INDEX
The ratio of the ten-minute to the one-minute measurement is known as the Polarization Index. In general, a high ratio is indicative of 'good' insulation.
DIELECTRIC ABSORPTION
Carrying out a 10-15 minute test will yield some meaningful information. Clean, dry insulation will show an increasing resistance reaching a final steady-state level, after 10 to 15 minutes. Wet or dirty insulation will reach a steady state value much sooner.
Insulation Resistance is the resistance offered by insulator separating two electrodes. The value determines quality of insulation.
POLARIZATION INDEX
The ratio of the ten-minute to the one-minute measurement is known as the Polarization Index. In general, a high ratio is indicative of 'good' insulation.
DIELECTRIC ABSORPTION
Carrying out a 10-15 minute test will yield some meaningful information. Clean, dry insulation will show an increasing resistance reaching a final steady-state level, after 10 to 15 minutes. Wet or dirty insulation will reach a steady state value much sooner.
Subscribe to:
Posts (Atom)