Wires 1 and 2 are made of the same metal. wire 2 has twice the length and twice the diameter of wire 1. what are the ratios (a) ï2/ï1of the resistivities and (b) r2/r1of the resistances of the two wires?
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Ответ:
Ответ:
The correct answer is: Option (A) 448.955 kPa
Explanation:
The formula for the absolute pressure is given as:
Absolute-pressure = Gauge-pressure + Atmospheric-pressure
Now rearrange the above equation to find the gauge pressure:
Insert the values:
Absolute pressure =
= 550.280 kPa
Atmospheric pressure =
= 101.325 kPa
Gauge pressure =
= ?
Hence the correct answer is: Option (A) 448.955 kPa