According to funtriva.com, the piece that allows you to adjust the amount of light that's coming through the microscope is called the adjustable diaphragm. It is located under to stage (where what you are observing is placed on) and can be rotated to make the light<span> intensity change</span>
Answer:
Bladder: A temporary storage place for urine
Ureter: Tube that carries urine from the kidneys from the bladder
Nephron: functional unit of the kidney.
Urethra: Exit way for urine out of the body.
Kidney: filters waste from the blood.
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Answer:
The magnetic field at the center of a circular loop is 
.
Explanation:
Given that,
Radius = 4.0 cm
Current = 2.0 A
We need to calculate the magnetic field at the center of a circular loop
Using formula of magnetic field
Where, I = current
r = radius
Put the value into the formula
Hence, The magnetic field at the center of a circular loop is .
