Apparent power is VA. Real power is W reactive power is VAR. Under an inductive+resistive load the VA is higher than W
static power dissipation dynamic power dissipation short circuit power dissipation
There are two types of circuits: series, and parallel. In a series circuit, electricity flows through all components of the circuit in a series. This means it flows from the power source, through all the components as a whole, then back to the source. A parallel circuit, on the other hand has the electricity flow through the components separately. Power flows from the source to each individual component individually, then back to the source. In a series circuit, if one component is missing or broken, the circuit will not function. With a parallel circuit, on the other hand, if a part is missing, or broken, all the other components will still work.
It is hard to say when there is no "which of the following".
Dc Power Supplies converts AC to DC Two Main types 1)Linear : A simple circuit with diodes and capacitors 2)Switched Mode: sampling technique is used to convert AC to DC.
Series and parallelImproved AnswerThere are four categories of circuit: series, parallel, series-parallel, and complex. 'Complex' is a 'catch-all', used to describe circuits that are not series, parallel, or series-parallel. An example of a 'complex' circuit is a Wheatstone Bridge circuit.
these two types of circuit loads are the purely capacitive loads and purely inductive loadsAnother AnswerApparent power will be larger than true, or active, power in ANY circuit, other than a purely-resistive circuit or an R-L-C circuit at resonance.
The different types of power factor are: # Leading ( Due to Capacitive Circuit) # Lagging (Due to Inductive Circuit) # Unity (Due to Resistive Circuit)
static power dissipation dynamic power dissipation short circuit power dissipation
With a DC, we only have to consider the resistance of the load when we calculate power. However, with AC, we must also consider reactance (inductive reactance and/or capacitive reactance) when we calculate power. In fact, we need to consider three 'types' of power: true power, reactive power, and apparent power:True power describes the rate at which energy is dissipated by the resistive component of the circuit. This energy cannot be restored. We measure true power in watts.Reactive power describes the rate at which energy is temporarily stored in the magnetic field (inductive component) or electric field (capacitive component), and returned to the source when the field collapses. We measure reactive power in reactive volt amperes.Apparent power is the net rate of transfer of energy, and is the vector sum of true and reactive power. We measure apparent power in volt amperes.To find the true power of the circuit, you can use a wattmeter. To measure the apparent power of the circuit, it is simply the product of the supply voltage and load current. You will need to vectorially subtract the true power from the apparent power to determine the reactive power.A very important ratio used in AC power calcuations is (true power)/(apparent power), and this is called power factor -it corresponds to the cosine of the angle (phi) by which the load current lags or leads the supply voltage.Simple vector analysis will reveal that the true power = U I cos (phi)
The apparent power (VA) is a quantity which applies to alternating current with a reactive component. It does not apply to DC and, with AC, the apparent power and real power are the same if there is only resistance present. With AC, other than just resistance there can be capacitors or inductors (coils) present. Perfect examples of these types of components do not dissipate power but do conduct current if AC voltage is applied. In your example, the resistive component is 30 ohms while the reactive impedance is 40 ohms meaning the total impedance is 50 ohms (Pythagoras). You can't just add reactance and impedance. The current through the circuit will therefore be 2.4 amps (I=V/R OR 120/50). The real or true power will be 172.8 watts ( I2 x R OR 2.42 x 30) while the apparent power will be 288 VA (2.42 x 50).
Reciprocal circuit elements are those elements/circuits in which power loss/gain is same at both nodes/ends.In these types of circuits we can check the circuit or connect it in any way.
parallel circuit
stand by: battery powered circuit is used when AC input fails inline device: battery powered circuit is used continually
In a.c. circuits, there are two different 'types' of 'power': 'true power' and 'reactive power'. 'True power' describes the rate at which the energy supplied to a load is either lost to the surroundings through heat transfer or which does useful work (such as providing the output from a motor), and we measure this in watts. 'Reactive power' describes the rate at which energy is alternately stored in the load's magnetic or electric fields and, then, returned to the supply as the current increases and decreases every quarter-cycle, and we measure this in reactive volt amperes. Some books describe reactive power as the rate at which this energy 'sloshes back and forth, between the supply and the load's magnetic or electric fields', because it represents the movement of energy but not a loss of that energy! For a given load, reactive power increases as the phase angle (the angle between the load current and the supply voltage) increases. Obviously, therefore, the greater a load's reactive power, the greater its apparent power. The 'total' rate at which energy is moving in an a.c. circuit is the vector sum of true power and reactive power, and we call this the circuit's 'apparent power', expressed in volt amperes. Power factor is simply the ratio between true power (expressed in watts) and apparent power (expressed in volt amperes) or the cosine of the phase angle. Loads with low power factors (i.e. large phase angles) draw far more current than is necessary for the energy consumed from the supply. So, low power-factor loads require unecessarily-large supply conductors if higher-than-normal voltage drops and line losses are to be avoided and are, therefore, undesirable.
Series circuit Parallel circuit Tank circuit
There is insufficient information in the question to properly answer it. You did not specify the (two) types of circuit. Please restate the question.
combinational circuit and sequential circuit