The resolving power of a microscope refers to the ability to ...

[Pea0909berry]

The resolving power of a microscope refers to the ability to
 
  A) distinguish objects of different colors.
  B) form clear images of two points that are very close together.
  C) form a very large image.
  D) form a very bright image.
  E) form a very microscopic image.

Question 2

A coil of 57. turns of wire has a diameter of 9.5 cm and carries 7.2 Amperes.
 
  (a) How large is the magnetic field, in Tesla, at the center of the loop?
  (b) How many Gauss is that?
  (c) If the same length of wire made a coil with twice the original diameter, how large is the magnetic field now?

[jrpg123456]

Answer to Question 1

B

Answer to Question 2

(a) 5.4 mT
(b) 54. Gauss
(c) 1.4 mT

[Pea0909berry]

Gracias!

[xiaomengxian]

Great answer, keep it coming