Step 3:Calculate the resistance (R) of the wire using the formula for resistance: {eq}R=\frac{\rho L}{A} {/eq}. What is Resistivity? Resistivity:All objects have a characteristic known as resistivity, which describes how well the material can conduct electricity. Objects with a high resi...
Substrate B vertical cross-section:(heavily doped with epitaxial layer) What can you comment on how doping concentration effects the substrate resistance? There are 2 steps to solve this one. Solution ShareShare Step 1 Given: The resistivity isρ=1q...
resistance (Ω)at 20°C of a silicon rod with a resistivity of0.9Ω∙m (ρ) that is4.5meter long (L)and has a cross-sectional area of0.05m2(A).(R = ρ∙L/A)a) 0.2Ωb)4Ωc)81Ωd)280Ω10.Which set of statements is true:i.Superconductors, lose all of their r...
thatis,theresistanceofcopperwirewithacross-sectional areaof1mm2andalengthof1metersis0.0185.Therearesome differencesinresistivityatdifferenttemperatures,andthe resistivityhasatemperaturecoefficient. Isthatright?Tobeverified!(20,theresistivityis0.0185, alittletoolarge,sothecalculationof0.01742and0.0175 ...
Engineers often ask how to calculate the resistance of a cable, there is a very simple formula that works well for copper cable
Calculate the area of cross-section of a wire if its length is 1.0 m, its resistance is 23 Omega and the resistivity of the material is 1.84 xx 10^-6 Omega m.
Calculations: power (watt), voltage, current, resistance Quantity of resistance R= resistanceΩ ρ= specific resistanceΩ×m l= double length of the cablem A= cross sectionmm2 Electrical conductivity(conductance)σ(sigma) = 1/ρ Specific electrical resistance(resistivity)ρ(rho) = 1/σ ...
travel. As a result, given the same voltage, a thicker cable carries more current. Choose a cable's exact thickness to meet a target level of resistance. The other relevant factors are the length of the cable, which external needs usually dictate and the resistivity of the cable's material...
Electric voltageV,amperageI,resistivityR,impedanceZ,wattageandpowerP VoltV,ampereA,resistanceandimpedanceohmΩ, andwattW The nominal impedanceZ= 4, 8, and 16 ohms (loudspeakers) is often assumed as resistanceR. Ohm's law equation (formula):V=I×Rand the power law equation (formula):P = ...
In page 139 of the document "ACDCModuleUserGuide.pdf", it pointed out that the variables such as impedance, resistance and so on are stored in the global variables. However, it is only for 2D axisymmetric models. What's the variables defined for general 3D models?