When 4 Ohm Wire Is Doubled On It Calculate The New Resistance? In the question it is given that wire is doubled. This means to fold the wire. As the wire is folded once its length becomes halved and the area of cross section becomes twice. Hence, when a $4$ ohm resistance wire is doubled
What Is The Symbol Of Specific Resistance? Specific Resistance (”ρ”) is a property of any conductive material, a figure used to determine the end-to-end resistance of a conductor given length and area in this formula: R = ρl/A. Specific resistance for materials are given in units of Ω-cmil/ft or Ω-meters (metric). What is the unit
What Is The Formula Of Resistivity? Resistivity, commonly symbolized by the Greek letter rho, ρ, is quantitatively equal to the resistance R of a specimen such as a wire, multiplied by its cross-sectional area A, and divided by its length l; ρ = RA/l. The unit of resistance is the ohm. What is m in
What Is Called Electric Resistance? Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is measured in ohms, symbolized by the Greek letter omega (Ω). … Insulators: Materials that present high resistance and restrict the flow of electrons. What is electric resistance and its unit? Electric resistance has the
What Is Difference Between Conductivity And Resistivity? Since conductivity is the measure of how easily electricity flows, electrical resistivity measures how much a material resists the flow of electricity. What is relation between resistivity and conductivity? A low resistivity indicates a material that readily allows electric current. Resistivity is commonly represented by the Greek letter
What Factors Are Effect On The Resistivity? What factors are effect on the resistivity? The resistivity of the materials depends on a few factors, which are temperature, mechanical stressing, age hardening, and alloying. What factors affect resistivity? The factors like temperature, alloying, cold work, age hardening & mechanical stress affect the resistivity of electrical materials.