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-- There's no such thing as 'indirect' current.
-- Direct current has no frequency. As soon as you mention 'frequency',
you're talking about alternating current.
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What does an electrical choke do?
A choke is an inductor. The impedance of an inductor is dependent on the frequency of the current flowing through it. The greater the frequency, the higher the impedance. Therefore an inductor when used as a choke blocks the flow of high frequency current (by presenting a high impedance), while allowing low frequency or direct current to flow through it. Its function is to block ("choke") high frequencies while passing low frequencies.
What is hvdc power transmission?
'HVDC' stands for high-voltage, direct current.
Why an inductor opposes the flow of alternating current?
A change in current through an inductor will induce a voltage into that conductor, the direction of which will always oppose that change in current. This is a natural phenomenon due to the conservation of energy.
What is a disadvantages DOL or direct online starter?
it can not be use for heavy duty motors as well as it requires a high starting current.
What is high frequency tuned amplifier?
High frequency amplifier is a device which is tuned by high frequency. Tuned means the overlapping of generated frequency with that amplifier.
What does a transmission system at a radio station use to convert a direct current into a high frequency alternating current?
a high power, often class C amplifier.
What is the difference between direct and indirect high frequency in electrical beauty treatment?
Direct high frequency current Is applying the electrode directly onto the skins surface direct is also doing passes with the elctrode , with a gauze over the face/skins surface.Thus creating more of an ozone effect. Note: too much ozone effect can damage skins tissue ,especially at long time periodsIndirect, the client holds the saturating electrode. To prevent the wear and suffering of the electrode, the client must hold the electrode holder handle with one hand and the electrode with the other. He/she is therefore charged with high frequency energy. The beauty professional then gently massages the client and high frequency is discharged from the client towards the fingers of the beautician in contact, concentrating the energy - the heat - in that area. There is little sparking, and therefore little stimulation.In the indirect method of high frequency application, the client is charged with high frequency energy by fixing a saturating electrode while the beautician manually massages the treatment area.Aesthetician Kristina H.
A transmission system at a radio station uses a an to convert a direct current into a high frequency alternating current?
so i see your cheating on pennfoster so i see your cheating on pennfoster
What is the function of a speaker capacitor?
If you are referring to a capacitor that connects to a 'tweeter' (the smaller high frequency speaker) it's function is to filter out the lower (bass) frequency signals, a capacitor 'blocks' direct currents (DC) and as a result the electrical 'signal' to a loudspeaker gets 'closer' to a direct current, the lower the frequency, so the capacitor is 'happy' to let high frequency (treble) signals pass through it, but resists the signal as the sound frequency decreases, down to the lower (bass) signals.
Can hertz kill?
The meaning of Hertz is a unit of frequency in SI; a high frequency electrical current can kill.
List and describe the two main electric modalities or current used in cosmetology?
Galvanic- a constant and direct current, having a positive and negative pole and produces chemical changes when passing through the tissues and fluids of the body Telsa High Frequency current- heat producing current with a high rate of oscillation or vibration
What does an electrical choke do?
A choke is an inductor. The impedance of an inductor is dependent on the frequency of the current flowing through it. The greater the frequency, the higher the impedance. Therefore an inductor when used as a choke blocks the flow of high frequency current (by presenting a high impedance), while allowing low frequency or direct current to flow through it. Its function is to block ("choke") high frequencies while passing low frequencies.
Why at low frequency current and power dissipation is high?
we know that frequency and time period are inversely proportional so as frequency decreases time period increases resulting in larger current flow thus increasing the dissipation.
Is it true that the current supply from electric power generating plants is an alternating current?
Yes, it is true that current supply from generating plants is an alternating current. There is no success found in bulk power generation of direct current ( D.C. ) in a power plant. But yes it is possible to transmit the power in the form of direct current ( High Voltage Direct Current Transmission-HVDC Transmission ) that possible after converting the generated alternating current into direct current with the help of high range converters.
What type of current only consists of direct current at a low voltage and high amperage?
battery
Do not use high-frequency current on hair treated with tonics or lotions that contain?
Alcohol
How does a high frequency induction motor work?
In a high frequency induction motor, EMF is induced leading to current flow. Torque in the rotor coil increases. As frequency increases, Impedance of the Rotor increases and currency reduces.
