On what factor does the resistance of a conductor depend

The resistance of a conductor depends on its length. It is directly proportional to the length, Rα l. • The resistance of a conductor is inversely proportional to its area of cross-section, i.e. Rα 1 / A. • Resistance depends on the nature of the material of the conductor. • Resistance also depends on the temperature of the conductor.

Using the relation, R = ρ l A Area of cross-section and resistance is inversely proportional to each other. Also, current and resistance has inverse dependence.Larger the area of cross-section of a conductor, more is the ease with which the electrons can move through the conductor. Hence smaller is the resistance of the conductor. Therefore,current will flow more easily through a thick wire than a thin wire of the same material.

Step1: Specific resistance • Specific resistance is defined as the resistance offered per unit length and unit cross-sectional area when a voltage of known value is applied. • SI unit of specific resistance is ohm-meter Ω m . • Following is the formula of specific resistance: ρ = R A L , where ρ = Specific resistance, R = Resistance, A= Cross-sectional area, L = Length of the wire, Step2: Factors dependence By the formula, we can readily see that • Specific resistance is directly proportional to the main resistance. • It is directly proportional to the area of the conductor. • It is inversely proportional to the total length of the conductor. • It also depends on the temperature. • It depends on the material used in the conductor as well. Thus, specific resistance depends on the area, resistance, length, temperature and material of the conductor.

• v • t • e The electrical resistance of an object is a measure of its opposition to the flow of electrical conductance, measuring the ease with which an electric current passes. Electrical resistance shares some conceptual parallels with mechanical ℧). The resistance of an object depends in large part on the material it is made of. Objects made of The resistance R of an object is defined as the ratio of V across it to I through it, while the conductance G is the reciprocal: R = V I , G = I V = 1 R may be most useful; this is called the differential resistance. Introduction [ ] In the The The resistance and conductance of a wire, resistor, or other element is mostly determined by two properties: • geometry (shape), and • material Geometry is important because it is more difficult to push water through a long, narrow pipe than a wide, short pipe. In the same way, a long, thin copper wire has higher resistance (lower conductance) than a short, thick copper wire. Materials are important as well. A pipe filled with hair restricts the flow of water more than a clean pipe of the same shape and size. Similarly, In addition to geometry and material, there are various other factors that influence resistance and conductance, such as temperature; see Conductors and resistors [ ] I ∝ V over a wide range of voltages and currents. Therefore, the resistance and conductance of objects or electronic components made of these materials is constant. This relationship is called ohmic materia...

Term (symbol) Meaning Current ( I I I I ) Measure of how much charge passes through a given area over time. SI units of Ampere (A) \text s 3 ⋅ A 2 kg ⋅ m 2 ​ start fraction, start text, k, g, end text, dot, start text, m, end text, squared, divided by, start text, s, end text, cubed, dot, start text, A, end text, squared, end fraction . Equation Symbols Meaning in words I = Δ q Δ t I = \dfrac R = A ρ l ​ R, equals, start fraction, rho, l, divided by, A, end fraction R R R R is resistance, ρ \rho ρ rho is resistivity, l l l l is length, and A A A A is cross sectional area Resistance is proportional to resistivity and length, and inversely proportional to cross sectional area. Current measures the flow of charges through an area over time. Figure 1 shows a wire with charges q q q q moving to the left through the wire, which has a cross sectional area A A A A . Imagine we counted how many charges passed through the cross sectional area in one second. This rate is the current. In conductors such as wires, the electrons are the only charge that move. The electrons flow opposite to I I I I (see Figure 2A). The direction of the flow of electrons is called electron current, and its direction is opposite to I I I I (see Figure 2B). The convention of I I I I representing the flow of positive charge is a historical convention that is equivalent to negative charge flowing in the opposite direction. It's important to remember that water through a tube is only an analogy. A tool to hel...

Electrical Resistance When an electric current flows through a bulb or any conductor, the conductor offers some obstruction to the current and this obstruction is known as electrical resistance and is denoted by R. Every material has an electrical resistance and this is the reason why conductors give out heat when current passes through it. In the next few sections, let us study electrical resistance in detail. What is Electrical Resistance? According to V ∝ I V = IR Electric charge flows easily through some materials than others. The electrical resistance measures how much the flow of this Factors Affecting Electrical Resistance The electrical resistance of a conductor is dependent on the following factors: • The cross-sectional area of the conductor • Length of the conductor • The material of the conductor • The temperature of the conducting material Electrical resistance is directly proportional to length (L) of the conductor and inversely proportional to the cross-sectional area (A). It is given by the following relation. What Is Resistivity? Electric resistivity is defined as the electrical resistance offered per unit length and unit cross-sectional area at a specific temperature and is denoted by ρ. Electrical resistance is also known as specific electrical resistance. The SI unit of electrical resistivity is Ωm. Following is the formula of electrical resistivity: \(\begin \) Where, • ρ is the resistivity of the material in Ω.m • E is the electric field in V....

Table of Contents • • • • On what factors does resistance depend? The resistance of a conductor depends on the cross sectional area of the conductor, the length of the conductor, and its resistivity. How does the shape of a wire affect resistance? This can be attributed to the lower amount of resistance that is present in the wider pipe. In the same manner, the wider the wire, the less resistance that there will be to the flow of electric charge. Does resistance depend on material? Resistance depends on an object’s size, shape, and material. In Figure 3 below, the cylinder’s resistance is directly proportional to its length l. The longer the cylinder, the higher the resistance. What are the factors on which the resistance of a conductor in the shape of a wire depends? READ ALSO: Does skin absorb magnesium from Epsom salt bath? Answer • Length of the conductor. • Area and cross-section of the conductor. • Effect of the material of the conductor. • Effect of temperature on the material. • Nature of the conductor. Does resistance depend on shape and size of conductor? It also depends on the shape and size of the conductor. The resistance of the given conductor depends on the length of the conductor and also the cross sectional area of the conductor. Resistance of a conductor is directly proportional to its length and inversely proportional to its cross sectional area. Does thickness affect resistance? The thickness of the wire does affect the resistance. The thinner the wire,...

Figure 1. The filament of an incandescent lights up because of the resistance provided by the conducting wire. Conductor resistance is a property of a The resistance of a conductor can be calculated at a temperature of [math]\ R = \frac[/math] where: • [math]R[/math] is the • [math]\rho[/math] is the resistivity of the material in ohm meters (Ωm) • [math]L[/math] is the length of the conductor in • [math]A[/math] is the cross-sectional area of the conductor in meters squared (m 2) This formula tells us that the resistance of the conductor is directly proportional to [math]\rho[/math] and [math]L[/math], and inversely proportional to [math]A[/math]. Since the resistance of some conductor, such as a piece of wire, depends on collisions within the wire itself, the resistance depends on temperature. With increasing temperature, the resistance of the wire increases as collisions within the wire increase and "slow" the flow of current. The amount of change is determined by the By utilizing the resistance of a conductor, light can be created in an incandescent light bulb. In an incandescent light bulb there is a wire filament that is a certain length and width, thus providing a certain resistance. If this resistance is just right, the current flowing through the wire is slowed just enough, without stopping as a result of too much resistance, that the filament heats up to the point that it glows. For more on conductor resistance, see PhET: Resistance in a wire The For Further Read...

Table of Contents • • • • • What are the 4 factors that affect the resistance of a conductor? There are 4 different factors which affect resistance: • The type of material of which the resistor is made. • The length of the resistor. • The thickness of the resistor. • The temperature of the conductor. What are the factors that affect the resistance of a conductor explain? There are several factors that affect the resistance of a conductor; • material, eg copper, has lower resistance than steel. • length – longer wires have greater resistance. • thickness – smaller diameter wires have greater resistance. • temperature – heating a wire increases its resistance. What factors affect the resistance of a conductor quizlet? Terms in this set (4) • Type of material. Better conductor less resistance. Metals better conductors. • Thickness. Thicker the wire, lower the resistance. • Length. Longer the wire, higher the resistance. • Temperature. Higher temperature, higher resistance. What are the factors that affect resistivity? Factors Effecting the Resistivity of Electrical Materials • Temperature. • Alloying. • Mechanical stressing. • Age Hardening. • Cold Working. What are the four factors affecting the resistance of an object? Resistance is the property of the material that restricts the flow of electrons. There are four factors affecting resistance which are Temperature, Length of wire, Area of the cross-section of the wire, and nature of the material. What is resistance and what ...