R is the electrical resistance,A is the cross-sectional area,l is the length of the piece of material.
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hero's formula
There is no single formula for probability, since there are many different aspects to probability.There is no single formula for probability, since there are many different aspects to probability.There is no single formula for probability, since there are many different aspects to probability.There is no single formula for probability, since there are many different aspects to probability.
The mid point formula is m= X1+X2/2 y1+y2/2
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There is no 'formula' for resistivity. The resistivities of different conductors have been determined by experiment.
Resistance (Ohms) = Voltage (v) / Current (I)
L1-L0=(RESISTANCE*AREA)/RESISTIVITY where L1=INIIAL LENGTH and L2=FINAL LENGTH
No. Resistivity is a material constant, defined for a standard size of material. For another size of material, it can be calculated. Resistivity is the same for any piece of material; resistance can change.
Resistivity is a property of a substance, and doesn't depend on the dimensions of a sample. If the length of a conductor is doubled, then its resistance doubles but its resistivity doesn't change.
R is the electrical resistance,A is the cross-sectional area,l is the length of the piece of material.
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.
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.
The resistivity of the material can be calculated using the formula: resistivity = resistance x cross-sectional area / length. Plugging in the values: resistivity = 20 ohm x 2 cm / 10 cm = 4 ohm cm. Since resistivity is measured in ohm meters (SI unit), the resistivity of the material in SI unit would be 0.04 ohm meter.
R= ρL/A ρ- electrical resistivity of the materialL- length of the conductor.A- cross sectional area of the conductor.
Take measurements of resistances of various lengths of a wire of constant diameter. Make a graph of resistance against length / cross-sectional area of wire. The gradient of the straight line section will be equal to the resistivity of the wire.
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.