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What is the cause of resistance and how the resistance of wire can be determind?
Wiki User
∙ 6y ago
The cause of resistance is the opposition to the flow of charges.Resistance occurs due to the collisions between charges inside a substance.
The resistivity of a wire can be found out by using a meter bridge or a slide wire bridge.
Wiki User
∙ 13y ago
Wiki User
∙ 6y agoResistance in any conductor is inherent in nature. Some conductor has less some have more comparatively. The resistance is measured in Ohms using a standard multimetr
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How does temperature affect resistance of a wire?
If you are asking if a hot wire has a greater resistance than a cold wire then the answer I would say is yes. Cold wires have always had less resistance than hot wires
A wire with resistance R is connected to the terminals of a 30 V battery. What is the current through the wire if the wire has the resistance?
Your current will be 30/R Amps. Where R is the resistance in Ohms.
Items that use low resistance wire?
Ni chrome is a low resistance wire used in heaters and toasters.
A piece of wire 100 m long has a diameter of 1 mm with a resistance of 2 ohms calculate the resistance of the same wire 2 km long with the same current?
If the wire length is 100m and the Diameter is 1mm calculate the Resistance of wire?
Would thick wires tend to have the least amount of eletrical resistance?
Yes, the resistance is directly proportional to length of wire and inversely proportional Area, hence when Length of wire increases the resistance also increases and when Area increases the resistance decreases. This means a thick wire has least amount of Electrical resistance.
What happens to resistance of the wire if the wire is short?
Short wire has less resistance Long wire has more resistance Thick wire has less resistance Thin wire has more resistance
What is the cause of resistance and how the resistance and how the resistance of a wire can be determined?
Electrical resistance can be determined by the equation that defines resistance - Ohm's Law. Just divide the voltage across a resistor, by the current passing through it.
Electric current flows in a wire which is opposed by what?
Resistance, which is measured in ohms. long wires and heat are the main cause of resistance increases.
Why the thin wire has grater resistance to electricity?
it has to do with ohms and the gauge of the wire. if you have a low ohms then you can't use a small thin wire. because the more ohms the more resistance. if you have a low omhs on a thin wire it can cause the wire to heat up. posibly catch fire.
What is the effect of temperature on specific resistance of wire?
increase of temp cause increase of specfic resistance...... bcz atoms exictes and cause hindrance in motio of free electons so by increasing temp specfic resistance increasaes
What is the effect on current in a wire if both the voltage across it and its resistance are doubled?
it will cause a Short Circuit
How does the thickness of the wire affect resistance?
A thicker wire has less resistance than a thinner wire.
How does the thickness of wire affect the resistance?
A thicker wire has less resistance than a thinner wire.
How does the cross sectional area of wire affect resistance?
Other things being equal, more cross-sectional area will cause less resistance.
How does the resistance of a wire vary with its length?
resistance of wire increases with increases of length
When wire is thicker its resistance is?
When a wire is made thicker it's resistance decreases.
How does length affect resistance of a wire?
In general, the longer the wire the greater the resistance. The only time that this is not so is when the wire is a superconductor, in which case the resistance is always zero.
