A light bulb operating at a dc voltage of 120 V has a resistance ...

[humphriesbr@me.com]

A light bulb operating at a dc voltage of 120 V has a resistance of 200 . How much power is dissipated in this bulb?
 
  A) 100 W
  B) 60 W
  C) 72 W
  D) 14 mW
  E) 7.2 W

Question 2

A long wire carrying a 2.0-A current is placed along the y-axis. What is the magnitude of the magnetic field at a point that is 0.60 m from the origin along the x-axis? (0 = 4  10-7 T  m/A)
 
  A) 6.7 T B) 0.67 T C) 0.12 T D) 1.3 T E) 12 T

[trog]

Answer to Question 1

C

Answer to Question 2

B

[humphriesbr@me.com]

Excellent

[xthemafja]

Gracias!