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•Measures each point in a single cycle of a signal relative to its point of origin
Phase tells you the delay in a signal
Pasquale Wisozk
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Is heating ice turning to gas a physical change?
Correct, any phase change is considered to be a physical change.
Is freeing a chemical or physical change?
I'm guessing your question is "Is freezing* a chemical or physical change?" and if it is, it is a physical change any phase change is a physical change
When butter hardens is that a physical or chemical change?
When butter hardens, it is a physical change. The change in state from liquid to solid is a physical transformation, meaning that the molecules rearrange themselves without any change in their chemical composition.
What does undergo physical or chemical changes mean?
if during a change the chemical composition of the reactants change or any new products are formed then the reactant is said to undergo chemical change.if the state, color, phase or any other physical properties of the reactant change without any change the chemical composition of the reactants or formation of any new substances then it is said to undergo physical change
Is sublimation of ammonium chloride a physical change or a chemical change?
Sublimation of any pure substance such as ammonium chloride by definition is a physical change, because sublimation is defined as passage of substance from the solid to the gas phase without passing through an intermediate liquid phase.
What is meant by signal?
A signal is defined as a the physical quantity that varies with time, space or any other indepenent variables.
Is heating ice turning to gas a physical change?
Correct, any phase change is considered to be a physical change.
Is freeing a chemical or physical change?
I'm guessing your question is "Is freezing* a chemical or physical change?" and if it is, it is a physical change any phase change is a physical change
Why does a phase shift occur in a ce transistor?
In any transistor circuit , there is a phase shift. It takes a finite time for the controlling signal, usually on the base connection, to have an effect on the circuit and cause a change to the output. The shape of the signal remains but it is shifted in time (phase). The difference varies by configuration. It can be as much as180 degrees if the circuit is inverting the signal. The addition of passive components add to the shift.
Can any signal have no energy?
In order for a signal to be detected, it must impart energy to the receiver, so, no, there are no signals that have no energy. It might seem that there is no energy. If you carefully consider capacitive and inductive reactance, however, you will note that current and voltage can be out of phase. If they are 90 degrees out of phase, then a "normal" meter will show no power, but there is energy transfer in any case.
What is the physical significance of enthalpy?
it is the total energy required to create any system by displacing its volume and pressure.
What is kilograms X kilometers equal to?
That would be million-gram-meter, a unit without any physical significance.
Can RF signal travel in air medium without antenna?
Yes. An antenna is only used to receive or send a signal. A RF signal travels throughout any air medium independently of the existence or not of an antenna. Of course you will need an antenna if you want to receive the signal (which has to have, by the way, more or less the same lenght of the wavelength of the RF signal), but the propagation of a electromagnetic wave doesn't need a physical support. You can see an example with the radiotelescopes. They receive signals which come from the outer space without any physical support. Electromagnetic waves (and RF signal is one kind of them) doesn't need any physical media to travel (they travel in vacuum too!)
What are the main condition to run two 240v AC UPS on parallel.?
They MUST be specially designed to share a common phase signal, so the outputs are in-phase. Yo cannot just parallel any two UPS's.
When butter hardens is that a physical or chemical change?
When butter hardens, it is a physical change. The change in state from liquid to solid is a physical transformation, meaning that the molecules rearrange themselves without any change in their chemical composition.
What are the terms used in phase rule?
Any homogeneous system part of a system having all physical and chemical properties same throughout.
What is the difference between SINR and CINR?
SINR - Signal to Interference and Noise Ratio CINR - Carrier to Interference and Noise Ratio difference between those to is difference between carrier and signal carrier is signal who doesn't "carry" any information . it must be modulated( by phase,freq or amplitude) and those changes convey information. carrier is unmodulated signal signal is defined as useful signal which carries information SINR is power of signal to power of interfenence and noise ratio
