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The power factor is a measure of the phase difference. If they are exactly in phase the PF = 1. If they are 180 degrees out of phase PF = 0.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoAt resonance, the load current is in phase with the supply voltage.
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What is produced first current or voltage?
current flows as a result of potential difference i.e. in a circuit if there is no voltage difference between two points, no current can flow between those two points. So voltage has to be produced first.
What is the difference between voltage ang current?
voltage: it is the potentail difference between two wires. or it is the amount of energy used to force the electrons.current: it is the flow of free electrons.by Balaji,NITCAnswerThere is no such expression as 'potential voltage'. 'Voltage' is simply another word for 'potential difference'.
What is the difference between an electrical surge and a brownout?
A surge is an over voltage and over current situation and a brownout is an under voltage situation.
Why current and voltage are not equal?
Current means flow of electrons Whereas the difference between two points is the voltage difference. Example: when you hold a filled jug of water at a certain height, it is the voltage. Because there is some difference of water at you end and the ground. But when you start pouring the water from the jug, water will fall on the ground which can be said a current.
Explain the relationship between voltage current and resistance?
The ratio of voltage to current is called resistance. In hydraulic terms, you can equate voltage to the difference in pressure between two points, current with the resulting flow of fluid between those points , and resistance as the opposition to that flow.
What is produced first current or voltage?
current flows as a result of potential difference i.e. in a circuit if there is no voltage difference between two points, no current can flow between those two points. So voltage has to be produced first.
When the circuit is said to be in resonance?
For a particular frequency if the current or the voltage of the circuit is Maximum or Minimum then that circuit is said to be in resonance .
What is the difference between voltage series and current series amplifier?
The main Difference between Voltage and Current Feedback Amplifiers is in the sampled(Output) signals. In Voltage feedback the sampled signal is voltage (Vf=Beta*Vo) where Vo is the sampled signal and for current feedback it is current signal (Vf=Beta*Io).
What is difference between 0.8 leading and 0.8 lagging power factors?
Power factor measures the phase difference between voltage and current. If they are in phase the Power Factor is one. If the current and voltage are out of phase the power factor is between zero and one. You can describe the PF by saying the current lags the voltage with a PF = .8 or the voltage leads the current with a .8 PF.
What is the difference between ac voltage and dc voltage?
access current ( like plugs in your house ) direct current (like batteries)
What came first the voltage or the current?
For a current to flow between two points, those points must have a potential difference (voltage) across them.
What are the functions of current transformers and the difference between current transformers and voltage transformers?
To sense the current flow across the current transformers and to monitor the current ratings. In current transformers no voltage variations occurs. but in voltage transformers it is mainly used to increase or decrease the voltage value.
What is the Difference between voltage controlled device and current controlled device?
The difference between a current control device and voltage controlled device is that for current controlled device, the current is constant and the voltage is variable while for a voltage controlled device, the voltage is constant and the current is variable.
What is the difference between voltage ang current?
voltage: it is the potentail difference between two wires. or it is the amount of energy used to force the electrons.current: it is the flow of free electrons.by Balaji,NITCAnswerThere is no such expression as 'potential voltage'. 'Voltage' is simply another word for 'potential difference'.
What is the term for the potential difference in a charge between two point in a current path?
voltage
What is the difference between an electrical surge and a brownout?
A surge is an over voltage and over current situation and a brownout is an under voltage situation.
Why would you not get an electric current if you hold a piece of wire in your hands?
Because there is no potential difference (voltage) between your hands. You can observe that easily if you have a voltmeter: Hold one probe in each hand, and read the voltage between your hands. The current in the wire is (voltage between the ends of the wire) divided by (resistance of the wire). If voltage=0, then current=0.
