Three long parallel wires each carry 2.0-A currents in the same ...

[burchfield96]

Three long parallel wires each carry 2.0-A currents in the same direction. The wires are oriented vertically, and they pass through three of the corners of a horizontal square of side 4.0 cm.
 
  What is the magnitude of the magnetic field at the fourth (unoccupied) corner of the square due to these wires? (0 = 4  10-7 T  m/A)
  A) 1.2 T
  B) 2.1 T
  C) 12 T
  D) 21 T
  E) 0 T

Question 2

What is the atomic number of a neutral atom that has an electron configuration of 1s2 2s2 2p6 3s2 3p2?
 
  A) 5
  B) 11
  C) 14
  D) 20

[lolol]

Answer to Question 1

D

Answer to Question 2

C

[burchfield96]

TYSM

[hollysheppard095]

Gracias!