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What will be Heat developed in current carrying carrying conductor?
Wiki User
∙ 11y ago
Any conductor has resistance. Maybe not much, but there's always some.
Any resistance dissipates power, at the rate of I2R. (I = current through it, R = its resistance.)
That's how you build toasters.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoHeat dissipated by the conductor =
(square of the current through the conductor) multiplied by (resistance of the conductor)
AnswerThe equation, W = I2R, gives the work, W, done by a current, I, flowing through a conductor of resistance, R. It does not give you any information about heat which, by definition, is the transfer of energy from a higher temperature to a lower temperature.
This work causes the internal energy, Q, of the conductor to increase which, in turn, causes its temperature to increase above ambient. The temperature difference between the conductor and the surroundings causes heat transfer away from the conductor.
To determine the heat transfer from the conductor, you will then need to manipulate the following equation the equation for Q:W - Q = m C (Tf - Ti)
where:
W = work done on conductor
Q = heat transfer from conductor
m = mass of conductor
C = specific heat capacity of conductor
Tf - Ti = temperature change of conductor
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If an electrical current passes through a conductor what two things are generated?
If an electrical current passes through a conductor, there is an induced voltage (because no conductor has perfectly zero ohms), resulting in power dissipation, and there is a magnetic field, which can interact with other conductors in the vicinity of the first.
What causes electrical connections to explode?
Various flammable gasses, flammable liquids, and combustible dusts can ALL explode when mixed with sufficent air, and an electrical spark creates enough heat to ignite the mixture. Examples would include hydrogen, propane, gasoline, alcohol, powdered sugar and flour.
How much amount of heat will be produced when one amphere current flows through a conductor?
you need more information my way. you use 2 formula v=ir and p=i*i*r. i=current r=resistance v=voltage and p=power (heat given out)
Why is heat observed when current flows through the circuit?
The heat observed in a circuit is the result of electrical resistance.Under normal circumstances, every electrical circuit has a certain amount of resistance to the flow of electricity. Electronflow opposed by the physical nature of the conductor. This is the fundamental nature of electrical resistance. Whenever this happens, the energy of those electrons is absorbed by the conductor (as opposed to flowing through) which then emitts this captured energy as heat. The higher a conductor's resistance, the more electrical energy is converted to heat by it.
Why busbar melted on circuit breaker primary side?
due to heat only it has malted . when over current is flowing in the Al. or cu. conductor at that time it will get damage or flash over will come.
What is effect of resistance in heat production in a current carrying conductor?
resistance will be high
What does a current carrying conductor produce?
-- heat (if it isn't a superconductor) -- a magnetic field in the space around the wire
Why does the heating effect of an electric current depends on the electrical resistance of a conductor?
The power dissipated by a resistance 'R' carrying a current 'I' is [ I2R ]. The power is dissipated as heat, and you can see from [ I2R ] that for a given current, it's directly proportional to 'R'.
Does every conductor heat up when electric current is passed through it?
yes every conductor heat up fast
Is air a conduction?
Air is a good conductor of sound, and a poor conductor of heat and electric current.
What do you mean by heating effect of current?
The heating effect of current refers to the phenomenon where the flow of electric current through a conductor leads to the production of heat. This occurs due to the resistance offered by the conductor to the flow of electrons. The amount of heat produced is directly proportional to the square of the current and the resistance of the conductor.
Why is the pipe carrying the hot gases made of copper coil?
Because copper is a good conductor of heat
Is a light bulb an insulator or conductor?
It is a conductor, but the filament is a resistor : as current flows through the filament, some of the energy is released as heat and light.
When current passes why copper wire does not get heated while the bulb gets heated?
copper wire is good conductor of heat but bulb is bad conductor of heat.
If a fuse becomes hot under normal load a probable cause is?
A fuse is nothing more than a conductor [wire] that is smaller than the conductor wire in circuit which the fuse is designed and intended to protect. The amount of current [measured in Ampheres (Amps)] creates some "resistance heating" in any conductor. The greater the current in relation to the size [and current carrying capacity] of the wire, the greater the heat generated. A fuse that runs warm or hot only indicates that it is carrying a lot of current, possibly near it's limit. When the current limit is reached, the fine wire in the fuse will melt [fuse], opening, or breaking, the circuit thus stopping the flow of current and protecting the conductor wire.
What will happen to the heat produced in a conductor if the electric current in the conductor is doubled keeping the other quantities the same?
The losses will be 4 times.
What if a conductor is to small?
Of a given material, smaller cross-sectional areas result in higher resistance to the flow of electricity. So at very very low currents, a small conductor reacts very similarly to a large conductor. As the current increases, the smaller conductor begins to heat as the current is dissipated by the higher resistance of the small wire. The amount of heat generated goes up by the square of the current, so 2x the current generates 4x the heat. Eventually, a high enough current can so heat the small conductor that it glows (like a light bulb) or melts or vaporizes as in a fuse. This is why houses and businesses are wired with thicker wire where the currents are higher like the wiring for the kitchen or for a heat pump.
