What is meaning of short circuit?

What is meaning of short circuit?
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1 Answer

Answer :

A short circuit occurs when conductors are connected (shorted) together by a fault. This is normally phase to phase fault due to failure of insulation by something cutting the wires, fires, etc.
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Related questions

indicate the false statement.TheSWRon a transmissionline isinfinity;the line isterminated in a. a short circuit b. acompleximpedance c. an open circuit d. a pure reactance

Description : indicate the false statement.TheSWRon a transmissionline isinfinity;the line isterminated in a. a short circuit b. acompleximpedance c. an open circuit d. a pure reactance

Last Answer : b. acompleximpedance

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Last Answer : c. liable to radiate

Impedance inversionmaybe obtainedwith a. a short-circuited stub b. an open-circuited stub c. a quarter-wave line d. a half-wave line

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Description : Write short notes on fire extinguishing methods adopted in electrical engineering. 

Last Answer : Stand 6 to 8 feet away from the fire and follow the four-step PASS procedure. If the fire does not begin to go out immediately, leave the area at once. Always be sure ... fire causing the particles to expand chemically inhibiting combustion and expelling the oxygen thereby smothering the flames. 

circuit I mean What ?

Last Answer : electricity Source , conductor , control Instruments , Usage Machines , Protection Machines In combination Such A Path Whose The middle With Current Flowing To be Can Him Circuit Or Circuit Says.

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What is a self-monitoring alarm circuit?

Description : What is a self-monitoring alarm circuit?

Last Answer : It self monitors the health of the alarm circuit. That is, it senses whether the power supply to the alarm circuit is healthy and all the relays and contacts are functioning normally. Check with E/O for more details.

Can you draw a DOL starter circuit?

Description : Can you draw a DOL starter circuit?

Last Answer : Refer to DOL diagram in Dennis T Hall

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Last Answer : (d) inverter

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Last Answer : (b) majority carriers

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Description : The number of diodes used in bridge rectifier circuit is (a) 4 (b) 3 (c) 2 (d)

Last Answer : (a) 4

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Description : The induced emf is produced in a circuit due to: a. Initial magnetic flux b. final magnetic flux c. Change of magnetic flux d. constant magnetic flux

Last Answer : d. constant magnetic flux

A circuit which develops voltage across the horizontal deflection plates is known as a) Time base generator b) Electron gun c) Thermionic diode d) Zener diode

Description : A circuit which develops voltage across the horizontal deflection plates is known as a) Time base generator b) Electron gun c) Thermionic diode d) Zener diode

Last Answer : a) Time base generator

Why should a resistance be introduced in a circuit in series deliberately? a. to increase current b. to decrease current c. to control current d. just to give a good look to circuit

Description : Why should a resistance be introduced in a circuit in series deliberately? a. to increase current b. to decrease current c. to control current d. just to give a good look to circuit

Last Answer : b. to decrease current

Resistance between points A and B in the circuit shown in figure is a. 4 ohm b. 6ohm c. 10 ohm d. 8 ohm

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Description : The current in the circuit shown in figure - What will be the current in the circuit? a. 1/45A b. 1/10A c. 1/5A d. 5A

Last Answer : b. 1/10A

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Last Answer : c. potential divider

Refer to the circuit below . The power consumed by the element E is equal

Description : الرجوع إلى الدائرة أدناه. الطاقة التي يستهلكها العنصر E متساوية.

Last Answer : The power consumed the element E is equal to the  : P = V x I = 6V x 1 A = 6 W

Refer to the circuit below. The voltage V2, is equal to:

Description : Refer to the circuit below. The voltage V2, is equal to:

Last Answer : The answer to this question is -3V. Because 3V is in parallel with v2 and voltages in parallel are equal. But it is in opposite direction so the answer is -3V.

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

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

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What is electrical circuit ?

Description : What is electrical circuit ?

Last Answer : An electric circuit is the interconnection of electrical elements. Electrical elements like battery, lamp, wire etc.

A circuit breaker is designed to protect an electrical circuit from damage caused by :

Description : A circuit breaker is designed to protect an electrical circuit from damage caused by :  (A) Over load (B) Short circuit (C) Over current (D) All of the above

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An electrical circuit with 10 branches and 7 junctions will have

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Last Answer : An electrical circuit with 10 branches and 7 junctions will have  4 loop equations.

The resistance of a few meters of wire conductor in closed electrical circuit is?

Description : The resistance of a few meters of wire conductor in closed electrical circuit is?

Last Answer : The resistance of a few meters of wire conductor in closed electrical circuit is practically zero.

Power factor of an electrical circuit is equal to?

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.

What is a node in an electrical circuit?

Description : What is a node in an electrical circuit?

Last Answer : a positively charged electrons

What is the meaning of a normally open contact?

Description : What is the meaning of a normally open contact?

Last Answer : The contact is open in the normal (de-energised condition).

What is the meaning of residual magnetism?

Description : What is the meaning of residual magnetism?

Last Answer : Residual magnetism is a property in which certain amount of excitation remains back in the conductor even after the removal of the magnets.

What is the meaning of excitation in an alternator?

Description : What is the meaning of excitation in an alternator?

Last Answer : An electric generator or electric motor consists of a rotor spinning in a magnetic field. The magnetic field may be produced by permanent magnets or by field coils. In the case of a machine ... rotor. The process of generating a magnetic field by means of an electric current is called excitation.

What is the meaning of overload?

Description : What is the meaning of overload?

Last Answer : An overload is a current over and above the normal load current (over the load). In other words greater than the original design current. This can be a momentary overload such as the starting ... such as plugging in too many appliances at once or a motor that has faulty bearings or gets jammed

What is the meaning of ACB, MCCB, NFB?

Description : What is the meaning of ACB, MCCB, NFB?

Last Answer : Air circuit breaker for 400V higher current ratings. Moulded case circuit breaker for 400V medium current ratings. No Fuse Breaker – 75 A capacity

What is the meaning of Star winding/ Delta winding?

Description : What is the meaning of Star winding/ Delta winding?

Last Answer : Refer Dennis T Hall

What is the meaning of earthing in a ship?

Description : What is the meaning of earthing in a ship?

Last Answer : Ask E/O

What is the meaning of saying I and V are in phase?

Description : What is the meaning of saying I and V are in phase?

Last Answer : The angle between the I and V waveforms is zero which means the load is purely resistive.

What is the meaning of power factor?

Description : What is the meaning of power factor?

Last Answer : Power factor is the cosine of the angle between voltage and current waveform.

What is the meaning of preferential trip? Why is it provided

Description : What is the meaning of preferential trip? Why is it provided

Last Answer : Preferential trip is a kind of electrical arrangement on ship which is designed to disconnect the non-essential circuit i.e. non-essential load from the main bus bar in case of partial failure or overload ... gear) and trips the non essential loads (like AC and galley) and is a safety feature.

5) An iron ring of mean circumference of 80 cm is uniformly wound with 500 turns of wire. Calculate the value of flux density that a current of 1 A would produce in the ring. Assume relative permeability 1400.

Description : Please ripley me due to emergency

Last Answer : To calculate the flux density in the ring, you need to use the following formula: B = (μ * I * N) / (2 * π * r) where: B is the flux density in the ring (in teslas) μ is the relative permeability ... 2 * π * 0.127 m) = 0.53 T So the flux density in the ring would be approximately 0.53 teslas.

Can you help me solve my electrical mystery?

Description : Can you help me solve my electrical mystery?

Last Answer : Any signs of animal life? They can get in the walls and chew on the wires. Or is it the entire area served by that breaker? The breaker could be bad. It happens with anything mechanical.

How to tell if a power strip is burned out?

Description : How to tell if a power strip is burned out?

Last Answer : answer:Personally, I would either toss it, or down grade it to outdoor use only. I wouldn’t take a chance with it in the house. Yes, you can let it cool down, then test it again. But a failure is a failure. Does it have a reset button? What price range did you pay?

I accidently soaked an extension cord. Is it safe to use it again after letting it dry out for awhile?

Description : I accidently soaked an extension cord. Is it safe to use it again after letting it dry out for awhile?

Last Answer : The plug end is easier to dry out than the socket end get out your blow-dryer and set it to high and blow the end that got wet for a while. That will get most of the water off/out of ... up or sputter. Most modern extension cords are pretty watertight so there shouldn't be any water down the wire.

How can a solar array power source be bypassed when the batteries run low?

Description : How can a solar array power source be bypassed when the batteries run low?

Last Answer : Ah got it. If anyone else is interested, you need an “automatic transfer switch” – or get a manual one for that mad scientist charm.

How to stop a signal going through a wire?

Description : How to stop a signal going through a wire?

Last Answer : Use a switch or a variable resistor

Air conditioning will not turn on, is it electrical?

Description : Air conditioning will not turn on, is it electrical?

Last Answer : Pull the Thermostat off the wall and see if it is connected correctly to the AC switch. There should be no dangling wires, and the post labeled for the AC should have an attached wire.

What is the speaker driving voltage of an amplifier?

Description : What is the speaker driving voltage of an amplifier?

Last Answer : I have to ask WHY? That said, Speakers and a light bulb are two different types of load, and the the lights will probably fry the output transistor.

Why is my Garbage disposal leaking water from the bottom?

Description : Why is my Garbage disposal leaking water from the bottom?

Last Answer : Replace it. The seal is leaking, and most cases it is just not worth the cost and work, quicker and cheaper to replace it .

Have you ever taken a shower or bath during an electrical storm?

Description : Have you ever taken a shower or bath during an electrical storm?

Last Answer : I’ve heard this rumor, and I too question it’s validity. I mean, if electricity can’t travel up a stream of urine (See mythbusters) I’m pretty sure it couldn’t travel through a shower stream. Perhaps through the drain? In either case, I’ve taken a shower in a storm before, and.. well, you see?

Electrical breaker box is buzzing-why??

Description : Electrical breaker box is buzzing-why??

Last Answer : No! Do not upgrade the breaker. The wire must also be upgraded if you do. Try plugging it in a different room. Is the problem still there?