A generator produces 60 A of current at 120 V. The voltage is ...

[kfurse]

A generator produces 60 A of current at 120 V. The voltage is usually stepped up to 4500 V by a transformer and transmitted through a power line of total resistance 1.0 .
 
  Find the percentage power lost in the transmission line if the voltage is not stepped up. A)
 
  0.018
  B)
 
  0.036
  C)
 
  5.0
  D)
 
  25
  E)
 
  50

Question 2

A charge q = 3  10-6 C of mass m = 2  10-6 kg, and speed v = 5  106 m/s enters a uniform magnetic field. The mass experiences an acceleration a = 3  104 m/s2.
 
  What is the minimum magnetic field that would produce such an acceleration? A)
 
  0.1 T
  B)
 
  0.004 T
  C)
 
  0.001 T
  D)
 
  0.01 T
  E)
 
  0.04 T

[Carliemb17]

Answer to Question 1

E

Answer to Question 2

B

[kfurse]

Gracias!

[ecabral0]

Excellent