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What are the two factors on which the resistance of a cylindrical conductors depends?
For conductor the resistance (R) is directly proportional to the length (L) of the conductor, and the area of cross-section (A).
When you stretch the conductor to increase its length, its area of cross-section will decrease. The decrease in area of cross-section can be found in the following way:
The volume of the cylinder will remain same. The initial volume of the cylinder is = A Х L
Suppose, the area of cross-section becomes A/ and the resistance becomes R/.
Hence, the resistance increases 4 times.
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What is the factors on which resistance depend .and explain?
Resistance depends on the material of the object (e.g. conductors, insulators), its dimensions (length, cross-sectional area), and temperature. These factors influence the flow of electrons through the material, impacting how difficult it is for current to pass through. Conductors have low resistance due to high electron mobility, while insulators have high resistance due to low electron mobility.
What is the resistance of air gap?
The resistance of an air gap primarily depends on its size and shape, with larger and wider gaps typically having higher resistance due to increased spacing between conductors. Factors like temperature, humidity, and presence of contaminants can also affect the resistance of an air gap. In general, air is considered a poor conductor of electricity, so air gaps have higher resistance compared to solid conductors.
What is air resistance and what are the two factors that air resistance depends on?
Air resistance is the force that opposes the motion of an object through the air. It depends on the speed of the object and its surface area exposed to the air.
Why is electrical cable cylindrical?
Electrical cables are cylindrical in shape because this design helps to provide protection to the conductors inside from external factors such as physical damage and environmental elements. Additionally, the cylindrical shape allows for easier installation and handling of the cables.
What are the factors of good conductor?
Factors that contribute to being a good conductor include having a high density of free electrons, low resistance to the flow of electricity, and a crystalline structure that allows for efficient electron movement. Materials like metals are typically good conductors due to these factors.
What is the factors on which resistance depend .and explain?
Resistance depends on the material of the object (e.g. conductors, insulators), its dimensions (length, cross-sectional area), and temperature. These factors influence the flow of electrons through the material, impacting how difficult it is for current to pass through. Conductors have low resistance due to high electron mobility, while insulators have high resistance due to low electron mobility.
What are the factors that affect resistance?
The factors are: length, cross-sectional area and nature of substance.
What is the resistance of air gap?
The resistance of an air gap primarily depends on its size and shape, with larger and wider gaps typically having higher resistance due to increased spacing between conductors. Factors like temperature, humidity, and presence of contaminants can also affect the resistance of an air gap. In general, air is considered a poor conductor of electricity, so air gaps have higher resistance compared to solid conductors.
What is air resistance and what are the two factors that air resistance depends on?
Air resistance is the force that opposes the motion of an object through the air. It depends on the speed of the object and its surface area exposed to the air.
Do most conductors have a inconstant resistance regardless of the applied voltage?
Most conductors exhibit a constant resistance within a certain range of applied voltage and temperature, following Ohm's Law (V = IR), where V is voltage, I is current, and R is resistance. However, at very high voltages or temperatures, some conductors may experience changes in resistance due to factors like heating or non-linear effects. Therefore, while they generally maintain constant resistance under normal conditions, deviations can occur under extreme circumstances.
What are the main causes of high resistance in the earth-continuity conductors?
High resistance in earth-continuity conductors can primarily be attributed to poor connections, corrosion, or degradation of the conductor materials. Additionally, the use of inadequate conductor size or type can lead to increased resistance. Environmental factors, such as moisture and soil conditions, can also contribute to resistance, affecting the overall effectiveness of grounding systems. Lastly, long conductor runs can introduce additional resistance due to the length of the path.
On what factors the current flowing through a device depends?
Current flowing through a device depends on resistance offered by that device.
Why is electrical cable cylindrical?
Electrical cables are cylindrical in shape because this design helps to provide protection to the conductors inside from external factors such as physical damage and environmental elements. Additionally, the cylindrical shape allows for easier installation and handling of the cables.
What are the factors affecting the resistance of conductors?
Conductor resistance = Conductor resistivity * Length of conductor / Cross sectional area of conductor. So. It is directly proportional to material & conductor length. And inversely proportional to the cross sectional area of conductor.
What is the power loss on aluminium 33kv line conductors?
The power loss in aluminum 33kV line conductors primarily occurs due to the resistance of the conductor, which leads to I²R losses, where I is the current and R is the resistance. The amount of power loss can be calculated using the formula P_loss = I² × R. Aluminum conductors have a relatively lower conductivity compared to copper, which can result in higher losses for the same current. However, the actual power loss will depend on factors such as the length of the line, the current flowing through it, and the temperature of the conductors.
Five factors that affect resistance?
Electrical Resistance depends on three factors: Resistivity; Area; Length.Resistivity is the property of the matter. More Resistivity means more resistance.More Area means less resistance.More length means more resistance.R= Resistivity. Length/Area
What three primary factors influence electrical resistance of circuit?
The resistance of any material is affected by its length, cross-sectional area, and resistivity. As resistivity varies with temperature, resistance is indirectly affected by temperature.Specifically, resistance is directly proportional to length and inversely proportional to cross-sectional area, and resistivity is the constant of proportionality.These factors apply to the conductors and all the components of your 'circuit' -including any insulation.
