Nichrome
What is the difference between a thick wire and a thin wire?
The
thin wire will conduct electricity
, but there is more electrical resistance. The thicker wire is like the four lane highway. There’s a lot less electrical resistance, and as a result, that light bulb burns brighter because more electricity can reach it.
Does a thick wire have more resistance than a thin wire?
The
resistance of a thin wire is greater than the resistance of a thick wire
because a thin wire has fewer electrons to carry the current. The relationship between resistance and the area of the cross section of a wire is inversely proportional .
Which has less resistance a thin or thick wire?
The resistance of
a thin wire
is greater than the resistance of a thick wire because a thin wire has fewer electrons to carry the current. The relationship between resistance and the area of the cross section of a wire is inversely proportional .
Is there more resistance in a long thick wire or a short fat wire?
There is greater resistance in a long thin wire than a short fat wire
, just like it would be harder to push water through a long thin pipe than a short thick one. Jumper cables for a car are a great example of thick, low resistance wires in order to allow a lot of current to flow to the battery of a dead car.
What type of wire has the lowest resistance?
A silver wire
has a lower resistance than a lead wire*. Resistivity is a characteristic of a substance (like density) and can be found in tables like the one below.
How can you reduce the resistance of a wire?
Changing the material, increasing the cross section area, lowering the temperature
, and using a thicker wire are some of the ways to reduce resistance.
Why does a thick wire has low resistance?
The longer a wire is the more resistance it has due to the longer path the electrons have to flow along to get from one end to the other. The
larger the cross sectional area
, the lower the resistance since the electrons have a larger area to flow through.
Does a hot wire have more resistance?
Heating a metal conductor makes it more difficult for electricity to flow through it. … Heating the metal conductor causes atoms to vibrate more, which in turn makes it more difficult for the electrons to flow,
increasing resistance
.
Which has less electric resistance a thin wire or a thick wire of same length and same material?
A thick wire has a greater area of cross-section, whereas a thin wire has a smaller area of cross-section. … This means that
a thick wire
has lesser resistance than a thin wire.
How does resistance change if the length of wire increases?
When the length of wire is longer, the current has to travel more distance and face more obstacles. With the length, resistance increases. The space of the elctrons to travel increases when cross
sectional area
is increased.
Which has more resistivity a thick or thin wire of same material when connected to the same source?
Answer: As per ohm’s law of electrical resistance, the thickness of the
conductive
wire is inversely proportional to the amount of resistance. The quantity of electrons in the thin wire is lower due to the less conductive surface. … The current will flow more easily through the thick wire than the thin wire.
What does resistance of a wire depend on?
The resistance of a wire is directly proportional
to its length
and inversely proportional to its cross-sectional area. Resistance also depends on the material of the conductor.
Which wire has less resistance a hot wire or a cold wire?
Current must travel farther through a longer wire, so there are more chances for it to collide with particles of matter.
A cooler wire
has less resistance than a warmer wire. Cooler particles have less kinetic energy, so they move more slowly. Therefore, they are less likely to collide with moving electrons in current.
Does the resistance of a copper wire increase or decrease?
Does the resistance of a copper wire increase or decrease when both length and diameter are doubled?
Resistance (R) is inversely proportional to Area(A)
. So if radius is doubled, new area= 4x Area of original wire. So the resistance becomes 1/4th of original value.
