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resistivity is not measured in ohms, it is measured in ohm-meters. Assume you mean 1000 ohm-meters. By "cross sectional area 10mm 20mm" I'll assume you mean a "cross section of 10mm by 20mm". You have already defined the thickness to be 10mm, so I can't calculate that, so I'll assume you want the length. That's 3 major corrections I had to make. I may well me making the wrong assumptions. You really need to write carefully. One of the most important traits in an engineer is the ability to write and speak carefully and correctly. anyway, here is my corrected version: A conducting sheet of material has cross sectional of 10mm x 20mm. The material has a resistivity of 1000 ohm-meter. Calculate the length of the materail required to give a resistance of 5 k ohm? the calculation is easy. 1000 ohm-meters / 5000 ohms = 0.2 m = 20 cm
What else can I help you with?
The resistance of a wire depends on the?
The length, cross-sectional area, and resistivity. As resistivity changes with temperature, temperature indirectly affects resistance.
What is the formula for resistivity?
Resistance (Ohms) = Voltage (v) / Current (I)
What is resistivity of material?
the electrical resistance of a conductor through unit cross-sectional area per length is called "resistivity of material"
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.
What is a high resistance circuit?
AnswerThe resistance of a material depends on its length, cross-sectional area, and resistivity. This is expressed by the following equation:resistance = [(resistivity x length) / cross-sectional area]So, resistance is directly-proportional to the resistivity and length of the material, and inversely-proportional to its cross-sectional area. So a high resistance can be obtained by increasing the length of the material or by decreasing its cross-sectional area, or by choosing a material with a high resistivity.It's also worth pointing out that resistivity is affected by temperature. For pure metals, the higher the temperature, the higher the resistivity, so the higher the resisistance. For example, a hot (i.e. an operating) tungsten lamp will have a much higher resistance than a cold tungsten lamp.
How do you calculate resistance of 70mm2 single core wire?
How do you calculate Resistance of 70mm2 single core wire?Read more: How_do_you_calculate_resistence_of_70mm2_single_core_wire
What quantities are needed to calculate an object's resistance?
To calculate an object's resistance, you would need to know the material's resistivity, its length, cross-sectional area, and temperature (if it's a variable). Using these values, you can apply the formula R = ρ * (L/A) to calculate the resistance, where R is resistance, ρ is resistivity, L is length, and A is cross-sectional area.
How do you calculate a cross-sectional area When all you know is resistance resistivity and length?
I think the equation you are looking for is Resistance (ohms) = Resistivity * Length / Area or R=p*L/A. This is the resistance of a circular wire with cross-section of A, length of L, and material with resistivity p. So to get area: Area = Resistivity * Length / Resistance.
Would have the same resistance as a copper wire that is 4 m long and has a cross-sectional area of 0.066 cm2?
A wire with the same resistance as the given copper wire would have the same resistivity as copper. The resistance of a wire is dependent on its resistivity, length, and cross-sectional area. To calculate the resistance of a wire, use the formula R = (resistivity * length) / area; however, without the specific resistivity value, an exact value cannot be provided.
The resistance of a wire depends on the?
The length, cross-sectional area, and resistivity. As resistivity changes with temperature, temperature indirectly affects resistance.
What is the formula for calculating resistance if the resistivity is 4.3 10-3 A?
The formula for calculating resistance (R) using resistivity (ρ) is given by ( R = \frac{\rho \cdot L}{A} ), where ( L ) is the length of the conductor and ( A ) is the cross-sectional area. In the given context, if the resistivity is ( 4.3 \times 10^{-3} , \Omega \cdot m ), you would need the length and cross-sectional area of the conductor to calculate the resistance. Without those values, the resistance cannot be determined solely from the resistivity.
What is the formula for resistivity?
Resistance (Ohms) = Voltage (v) / Current (I)
What is a resistance of a material?
Resistance is the opposition to the flow of electric current. It is affected by the length, cross-sectional area, and resistivity of a material. As resistivity is affected by temperature, temperature indirectly affects resistance.
What is resistivity of material?
the electrical resistance of a conductor through unit cross-sectional area per length is called "resistivity of material"
Does resistivity depends upon dimension of the conductor?
Yes, resistivity does depend on the dimensions of the conductor. The resistivity of a material is an intrinsic property, but the resistance of a conductor is also influenced by its dimensions such as length, cross-sectional area, and shape. These dimensions affect the resistance of the conductor through the formula R = ρ * (L/A) where ρ is resistivity, L is length, and A is the cross-sectional area.
Does the resistance of a wire depend on the cross section area of the wire?
No, the resistance of a wire primarily depends on its length, resistivity, and temperature. The cross-sectional area of the wire influences the wire's resistance indirectly by affecting the wire's overall resistance. A larger cross-sectional area generally results in lower resistance due to increased conducting area for current flow.
What is the law of resistance?
The law of resistance states that the resistance in a circuit is directly proportional to the length of the conductor, and inversely proportional to its cross-sectional area and the material's resistivity. It can be calculated using the formula R = ρ * (L/A), where R is resistance, ρ is resistivity, L is length, and A is cross-sectional area.
