# How do you find power in a circuit?

How do you find power in a circuit?

Power can be find in a circuit by the means of meters .if an individual want to check for a power in a circuit he/she Calabria the meters on a high voltage range and put the meters Lee in parallel with the circuit he /she will know the amount of power within that circuit .

## Related questions

Description : Source transformation Replace the circuit with voltage source in series with a single resistor

Last Answer : Source transformation Replace the circuit with voltage source in series with a single resistor

Description : Sinusoidal Steady-State Analysis - Using nodal analysis, find node voltages in the circuit.

Last Answer : Sinusoidal Steady-State Analysis - Using nodal analysis, find node voltages in the circuit.

Description : Is the power line voltage available in our homes a dc or an ac voltage?

Last Answer : The power line voltage available in our homes is AC. Mobile dwellings are the most commonly DC-supplied homes and even then they tend to include AC supply for heavier loads.

Description : What do you mean by exciting resistance and exciting reactance?

Last Answer : At no-load, a transformer behaves as a highly inductive load connected to the system which contains some resistance and inductance in parallel. The resistance is called exciting resistance R0 = V1/I w and reactance is called exciting reactance, X0 = V1/I mag

Description : In a metal conductor, what is a free electron?

Last Answer :  When many atoms are close together in a copper wire, the outermost orbital electron of each copper atom can easily break free from its home or parent atom. These electrons then can migrate easily ... random. Such electrons that can move freely from one atom to the next are called free electrons.

Description : A charge of 0.1 C moves past a given point every 0.01 s. How much is the current?

Last Answer : The current is 10.0A.  1ampere = 1 Coulomb per 1 second.  0.1Coulombs ÷ 0.01seconds = 10.0amperes.

Description : How does the resistance of a conductor compare to that of an insulator?

Last Answer : The resistance of a conductor can be significantly lower than the resistance of an insulator, depending on each material's atomic properties.

Description : How to find total impedance Z, current I and Impedance angle ?

Last Answer : How to find total impedance Z, current I and Impedance angle ?

Description : A parallel RLC circuit has the node equation Determine v(t) using the phasor method.

Last Answer : A parallel RLC circuit has the node equation Determine v(t) using the phasor method.

Description : The loop equation for a series RLC circuit gives

Last Answer : The loop equation for a series RLC circuit gives

Description : Describe the difference between an open circuit and a short circuit.

Last Answer : Open circuit means the wire is cut meaning power will not flow and close circuit means wire is not cut and hence power will flow.Short circuit is the same as close circuit

Description : Important Terms in Magnetic Circuit

Last Answer : Important Terms in Magnetic Circuit

Description : Find power delivered by voltage source

Last Answer : Find power delivered by voltage source

Description : Briefly explain how the power factor of an inductive circuit can be improved.

Last Answer : As we know that power factor should be corrected to ensure that the current supplied is cost friendly. Meaning the power factor should be around one but not greater than one(0.8-0.9) in a ... an inductive circuit due to the inductive reactance which oppose the change of current in the ac circuit.

Description : State maximum power transfer theorem for DC circuit.

Last Answer : Maximum power transfer theorem for DC circuit: The maximum power transfer theorem states that the source or a network transfers maximum power to load only when the load resistance is equal ... removed (disconnected) ii) All internal independent sources are replaced by their internal resistances.

Description : List any two methods of reactive power measurement in 3 phase circuit.

Last Answer : Methods of reactive power measurement in 3 phase circuit: (i) Two single phase wattmeter method (ii) One single phase wattmeter method

Description : In a pure resistive circuit, the average power Pavg is ______ the peak power Pmax. (1) Double (2) One-half of (3) One-fourth (4) Equal to

Last Answer : In a pure resistive circuit, the average power Pavg is One-half of the peak power Pmax.

Description : A snubber circuit is connected to the power semiconductor device to reduce the (A) turn-on time (B) turn-off time (C) electrical stresses (D) thermal resistance

Last Answer : A snubber circuit is connected to the power semiconductor device to reduce the electrical stresses

Description : The power factor of a D.C. circuit is always?

Last Answer : The power factor of a D.C. circuit is always unity.

Description : In an A.C. circuit power is dissipated in?

Last Answer : In an A.C. circuit power is dissipated in resistance only.

Description : The apparent power drawn by an A.C. circuit is 10 kVA and active power is 8 kW. The reactive power in the circuit is?

Last Answer : The apparent power drawn by an A.C. circuit is 10 kVA and active power is 8 kW. The reactive power in the circuit is 6 kVAR.

Description : The input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA The power drawn by the circuit is?

Last Answer : The input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA The power drawn by the circuit is 32 kW.

Description : Pure inductive circuit takes power from the A.C. line when?

Last Answer : It takes power when voltage decreases and current increases.

Description : The power factor at resonance in R-L- C parallel circuit is?

Last Answer : since a rlc circuit at resonance behaves like a pure resistive circuit, i.e there is no phase difference between current and voltage, hence the power factor is unity.

Description : Power factor of an inductive circuit is usually improved by connecting capacitor to it in?

Last Answer : Power factor of an inductive circuit is usually improved by connecting capacitor to it in parallel.

Description : Power factor of an electrical circuit is equal to?

Last Answer : Power factor of an electrical circuit is equal to R/Z, cosine of phase angle difference between current and voltage, kW/kVA.

Last Answer : Air blast circuit breakers for 400 kV power system are designed to operate in 50 millisecond.

Description : What is the power factor of purely resistive circuit.

Last Answer : Unity that is 1

Description : What is drive circuit in power electronics?

Last Answer : Driver is used for Motion Control through the use of power electronics.

Description : .The MOST cariogenic sugar is: A. Sucrose

Description : Write a note on ATP?

Last Answer : ATP is abbreviation of adenosine tri-phosphate. Composition: - It is made up of three-phosphate group. Adenosine is formed of nitrogenous base (adenine) and sugar (ribose). In ATP three- ... broken down a large amount of energy is released which is used in different activities of organism.

Description : Lewis PLC is breaking down and classifying costs to determine which are associated with specific marketing activities. Lewis is performing a A)marketing cost analysis. B)sales analysis. C)marketing audit. D)cost audit. E)variable cost analysis.

Last Answer : A)marketing cost analysis.

Description : Dissociative anaesthesia’ is produced by: A. Ketamine B. Fentanyl C. Propofol D. Both ‘A’ and ‘B’ are correct

Last Answer : Ketamine is the preferred anaesthetic for the following except: A. Hypertensives B. Trauma cases who have bled significantly C. Burn dressing D. Short operations on asthmatics

Description : Illustrate with neat wiring diagram a single lamp control by two point method.

Last Answer : Single lamp control by two point method:  This system is commonly used for stair case wiring. It consists of two way switches (the switch operates always in one of the two possible positions) the ... the person will change the position of switch S2, so that the lamp will be switched OFF'.

Description : What is PLL? Explain its operation with a block diagram.

Last Answer : PLL - A phase-locked loop or phase lock loop is a control system that generates an output signal whose phase is related to the phase of an input signal Block diagram  ... to the input frequency. The phase - locked loop goes through three states free running capture and phase lock.

Description : Draw block diagram of PLL as a FM demodulator. Explain function of each block.

Last Answer : Operation:  The FM signal which is to be demodulated is applied at the input of the PLL.  the PLL is locked to the FM  The error voltage produced at ... using PLL ensures a high Linearity, between the instantaneous input frequency and VCO control voltage (error amplifier output)

Description : With a neat sketch give the working of shaded pole induction motor.

Last Answer : Explanation: It has squirrel cage rotor and salient pole stator. The stator poles are shaded partially by short circuited conductor band to create the phase difference between the fluxes emerging from shaded ... rotating magnetic field in the air-gap and torque is exerted on the squirrel cage rotor.

Description : Class A Load Commutation

Last Answer : Class A: Load Commutation: The class A or load commutation (also called self-commutation or resonant commutation) is employed in thyristor circuits supplied from DC source. The commutating components include ... biased. Thus the zero-current and reverse-bias cause the thyristor to turn-off.

Description : Why does the speed of a DC shunt motor decrease as the load increases?

Last Answer : Because if the load is increasing then the torque must also be increase. If not then the speed of motor will decrease.

Description : Which is a semiconductor: copper, silicon, or neon?

Last Answer : Copper is a metal. Silicon is a semiconductor. Neon is inert gas.

Description : What is the smallest unit of a compound with the same chemical characteristics?

Last Answer : The molecule is the smallest unit of a compound with the same chemical characteristics.

Description : Instantaneous value of a sine wave voltage

Last Answer : Instantaneous value of a sine wave voltage

Last Answer : Digital inverter or analog? Actually as you know, a transistor by itself is already an inverter however you can use resistive load inverter for digital circuits by having two mosfets, pmos at the top ... be connected and that connection should have a pulse signal in order to switch the mosfets.

Description : How do I find a person?

Description : How to Find the North Star

Last Answer : How to Find the North Star Survival tips always remind us of looking for the north star to help orient ourselves. Knowing which way we're going is always helpful when you're lost in the wilderness. Many ... Star. The third star that you hit when running a line from the Big Dipper is the North Star.

Description : How to Find North

Last Answer : How to Find North We all need to find our way to get somewhere. In places where there's no one to ask directions from, you need to rely on navigational aids to help you find your way out of a ... find North. Once you find North, you can get yourself back in the right path when you're lost somewhere.

Description : How to Find an Average

Last Answer : How to Find an Average Teachers, business owners, and scientists all have to deal with large groups of numbers. Grades, money values, and numerical arrays often need to be combined to find a ... good idea of what you can do with a seemingly meaningless and confusing set of scores and numbers.

Description : How to Find a Lost Hamster

Last Answer : How to Find a Lost Hamster Hamsters may be small, cute and furry but don't be fooled by their sweet looks: They're great escape artists! Should you find that your hamsters is on the lam, don't panic ... it up in places where your hamster is most likely to be. Use hamster food as bait for the trap.

Description : How To Find Your Pulse

Last Answer : How To Find Your Pulse Knowing how to find your pulse, or other people's pulses is fairly important. First, it can help you monitor your target heart range (THR) and second, it's one of ... and maneouver a little bit if you must. You should feel your radial artery pretty strongly in this position.

Description : How to Find a Dentist

Last Answer : How to Find a Dentist A good dentist for you and your family is an essential part of healthy living. The question is, how do you find a great dentist that will give you excellent service to all ... . Ask the dentist how she or he keeps up with the knew developments in the field of dentistry.