Calculate resistance using cross section and specific resistance?
what is the formula for these tasks???
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according to specific resistance is the formula
q is the spherical resistance. Here it seems to be electric coppers, l the length of the wire in meters and A the cross section in square diamonds.
but you can also count on it. that would be
Q is the control value. for electric copper, 56 are accepted. l as had the length in meters and A the cross section in square diamonds.
the specific resistance is, by the way, the calorific value of the control value. i.e. in this case 1/56 so 0.0178something…
Actually, the unit of the special says. Resistance what you need to do to get on Ohm:
Multiply with length (i.e. m, but in mm) and divide by surface (mm2).
You will find the formula here:
Ohm must come out, so you have to multiply with the wire length and divide through the cross section.
R = specific resistance × length ÷ area A