It is A. a refrigerator cause a alternating current is current that doesn't stop and the refrigerator is plug into the wall.
Answer:
I_max= 1000 A
Explanation:
Expression of torque is given by
τ= BIA Sinθ
B= strength of magnetic field
I= current
A= Area
for maximum torque θ=90°⇒sin 90=1
Now for I_max= τ/BA
Let us take the average magnetic field of the earth as 50μT.
Area is calculated as
Substitute the values and calculate for maximum current
I_max= 1000 A
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Before taking a pressure reading, it is necessary for the technician to first allow the temperature of the cylinder to stabilize to room temperature because a comparison with a temperature-pressure chart is only valid and true when both temperature and pressure of the refrigerant are stable.
The atoms/ particles that are in the gas have gotten energy from the heat, because of that, they zoom around the container, putting pressure on it :) hope it helps :)
