Answer:
8 mm
Explanation:
From the information given:
The Ampere circuital law can be used to estimate the magnetic field strength at two points when the distance is less than the radius and when the distance is greater than the radius.
when the distance is less than the radius ; we have:
when the distance is greater than the radius; we have:
Equating both equations together ; we have :
where; d = radius of the wire and r = distance;
R = 8 mm
Telescopes have three functions
1 to collect more light
2 To resolve close objects
3 To magnify.
Explanation:
To collect more light we have to build large sized mirrors..Then only we can see very faint objects.
To separate two close objects a also we need large aperture
So by making large telescopes we can see more faint objects and more deeper into universe..
Answer: Technician B is right.
Explanation:
Evacuation process is used in refrigeration systems to remove moisture, air and non-profit condensable gases in order to achieve maximum function of the system.
vacuum pump is used to draw the sealed AC system into a vacuum. Evacuation of a refrigerant system also helps to maintain pressure, this is so as pulling a vacuum on the system is simply removing matter (mostly air and nitrogen) from inside the system so that the pressure inside drops below atmospheric pressure.