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Why does a longer piece of wire have more electrical resistance than a shorter piece?
A longer wire has more electrical resistance because there is more wire material for the electrical current to pass through. This increased distance results in more collisions between the moving electrons and the wire atoms, which hinders the flow of current and creates more resistance.
What else can I help you with?
Does a longer wire equal resistance?
Wire is not equal to resistance. If you have two pieces of wire with the same thickness, composition, and temperature, the longer piece has higher electrical resistance.
Is electrical resistance and electrical resistivity the same?
No, they are not the same. Electrical resistance is a measure of how much a material opposes the flow of electric current, while resistivity is a property of the material itself that determines its resistance. Resistivity is an intrinsic property of the material, while resistance depends on the dimensions and shape of the material.
Is a piece of wood an insulator or a conductor?
A piece of wood is an insulator because it does not allow electricity to flow through it easily. Wood has high resistance to electrical current, unlike conductors such as metal.
What is the effect on its resistance if a resistive wire is elongated?
If a resistive wire is elongated, its resistance will increase. This is because the longer length of wire will result in more collisions between electrons and the wire's atoms, leading to higher resistance. The resistance of a wire is directly proportional to its length.
Why is the resistance of a long wire greater than a short wire?
The electricity that we use is the flow of electrons jumping from atom to atom within the atomic/molecular structure of the conducting material. Metals, like copper, commenly used for wires, have a dense molecular structure consisting of atoms that easily receive and release extra electrons. It does, however, require energy for an electron to pass through the space in between the atoms, resulting in a loss of energy. This loss of energy is mesured in resistance. The longer the wire, the longer the chain of atoms an electron must jump between. Just like climbing a ladder, the longer the ladder, the more steps you must take to reach the end, and the more energy used.
Is shorter more conductive or longer more conductive?
Other things (cross-section, material) being equal, a longer piece of conductor has more resistance (i.e., less conductance) than a shorter piece.
Does a longer wire equal resistance?
Wire is not equal to resistance. If you have two pieces of wire with the same thickness, composition, and temperature, the longer piece has higher electrical resistance.
Does thickness of a metal affect its electrical resistance?
Metals are conductive, but are not perfect conductors and so they have some electrical resistance. How the resistance of the metal is affected by "thickness" depends on what you mean by thickness. If the electrical current has to flow through a longer piece of metal, then the resistance of the metal to electrical flow would be greater. However, if you take that same length of metal and increase the area of the metal by increasing its "thickness", then the resistance of the metal becomes less.
If a pole 126 feet long was broken into unequal parts so that three fifths of the longer piece equaled three fourths of the shorter piece what is the length of the longer piece?
The longer piece is 70 feet and the shorter piece is 56 feet. Three fifths of 70 is 42 and three fourths of 56 is 42.
Application problem a piece of wire was cut into 2 pieces in the ratio 7 8 the shorter piece was 14cm find the length of the longer pieces?
If a piece of wire was cut into 2 pieces in the ratio 7:8 and the shorter piece was 14cm, then the length of the longer piece will 16cm.
A board 1.2m long is cut so the length of the longer piece is 15cm longer than twice the length of shorter piece.How long is the shorter piece?
1.2 m = 120 cm Let the shorter piece be x, then the longer piece is 2x + 15. So we have: x + 2x + 15 = 120 3x + 15 = 120 subtract 15 to both sides 3x = 105 divide by 3 to both sides x = 35 Thus the shorter piece is 35 cm.
Does long wire have a lower or higher resistance than short wire?
A long piece of wire will have more resistance in it than a shorter one of the same material.
Is a piece of chalk a conductor or an insulator?
A piece of chalk is an insulator. It does not conduct electricity due to its high resistance to the flow of electrical current.
A 16-foot piece of string is cut into two pieces so that the longer piece is 1 foot longer than twice the shorter piece. Find the lengths of both pieces?
Total length = 16ft Let the longer piece = x ft Let the other piece = (16-x)ft equation, x - 2(16-x) = 1 x - 32 + 2x = 1 3x = 33 x = 11ft 16-x = 5ft Longer piece = 11ft shorter piece = 5ft
What would reduce resistance in a copper wire?
Reducing the temperature of the wire will decrease its resistance. Also, using a wire with a larger cross-sectional area will lower resistance since there is more room for electrons to flow. Finally, using a more conductive material than copper, such as silver, can reduce resistance.
What is formula of resistivity?
R is the electrical resistance,A is the cross-sectional area,l is the length of the piece of material.
What is the formula of resistivity?
R is the electrical resistance,A is the cross-sectional area,l is the length of the piece of material.
