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Alternating voltage is the E.M.F. and is one whose magnitude whose magnitude changes with time and direction reverses periodically.
The instantaneous value is given by
E=Eo sin w t, where,E=value of alternating voltage at time t
Eo = maximum value of alternating voltage(amplitude)
w=angular frequency of supply.
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What voltage is DC?
A voltage DC(direct current voltage) is a uni-direction steady voltage. It is the opposite of an analog/alternative voltage which varies in polarity and direction with time.
Does the alternative current flow through capacitor?
Yes. Voltage is shifted 120 degrees.
What is an alternative name for the unit volt squared ohm?
An alternative name for the unit Volt Squared Ohm (VOM) is a multimeter or a multi-tester. This is an instrument that measures voltage, currents, resistance.
What diodes are called catching diodes?
It's a diode that is used to limit a voltage to some desired value. Importantly, it's used to limit a transient voltage or an alternative voltage. The simplest example is that diode placed across a relay's inductive coil. As current is cut off through the coil, a large induced voltage appears that can cause damage to the circuit. A diode can be placed in circuit to catch/damp the induced voltage.
What is multilevel inverters?
The multi level inverter has been introduced since 1975 as alternative in high power and medium voltage situations. The Multi level inverter is like an inverter and it is used for industrial applications as alternative in high power and medium voltage situations. Multilevel inverters are three types. 1.Diode clamped multilevel inverter 2.Flying capacitors multilevel inverter 3.Cascaded H- bridge multilevel inverter
What is an antiresonance?
An antiresonance is a condition in an electric circuit containing a capacitor and coil in parallel and in which the alternative current line voltage and the resultant current are in phase, in which the impedance approaches infinity.
Can you suggest any alternative procedure for the determination of thevenin's resistance?
One alternative method to determine Thevenin's resistance is to perform a voltage divider analysis on the circuit. By applying a test voltage source and analyzing the resulting current, you can calculate the Thevenin resistance based on Ohm's Law. Additionally, you could use nodal analysis or mesh analysis techniques to determine Thevenin's resistance by setting up equations based on the circuit components.
What is the function of emf in electric circuit?
An electromotive force is the potential difference developed by a voltage source, and is necessary to cause current to flow through a circuit. Strictly-speaking, it is the open-circuit potential difference of a battery, generator, etc. An alternative definition is that an e.m.f. is equal to the sum of the voltage drops around any closed loop, including any internal voltage drop.
What is alternator?
It is a device that converts mechanical energy to electrical energy on a car. It works by:the alternator creates an electric field by spinning a magnetic rotor with direct current inside stator windings. an ac voltage is developed and rectified dc. this voltage is compared to the battery voltage and determines the current through the rotor. if the battery voltage is lower than the alternator voltage, more current through the rotor increases the magnetic field and creates a larger alternator voltage. if the battery voltage is higher, less current through the rotor decreases the alternator voltage.
Is voltage measured in volts?
Voltage, along with electric pressure, electric tension, and electrical potential difference is measured in units of electric potential. This can be joules per coulomb or volts.AnswerFirst of all, there is no such thing as a 'voltage difference'. Voltage is already a 'difference', as it is an alternative name for 'potential difference'! 'Voltage difference', therefore, would mean 'potential difference difference', which makes no sense!The unit for potential and potential difference (voltage) is the volt, which is equivalent to a coulomb per second.
Convert ac voltage rms to dc voltage?
The dc voltage of a rectified ac voltage will be the peak value of the ac voltage less the forward voltage drop of the diode.The rms voltage of a sinusoidal ac voltage is sqrt(peak) / 2, but you also have to consider if the ac voltage is balanced around zero.For a normal US house voltage of 117VAC, the peak voltage is about 165V, or 330V peak to peak. Your dc voltage is then around 164V.Run that rectified voltage through a capacitor, and you will still have 164V peak value, but the voltage over time will dip because the capacitor will discharge during diode off time, and recharge when it turns back on.AnswerA given value of a.c. rms voltage is exactly equivalent to the corresponding value of d.c. voltage. For example, 120 V (rms) is exactly equivalent to 120 V d.c. This is why the alternative name for 'rms voltage' is 'effective voltage'. This is based on the fact that a current of, say, 10 A (rms) will do exactly the same amount of work as a d.c. current of 10 A. And, of course, voltage and current are proportional.
What is the difference between voltage forward voltage and voltage drop?
Voltage is the potential difference between the source & any point in the circuit. The forward voltage is the voltage drop across the diode if the voltage at the anode is more positive than the voltage at the cathode (if you connect + to the anode). Voltage drop means, amount of voltage by which voltage across load resistor is less then the source voltage.
