A silver wire has a cross sectional area A = 2mm2. A total of of ...

[panfilo]

A silver wire has a cross sectional area A = 2mm2. A total of of 9.4  1018 electrons pass through the wire in a time t = 3s. Silver has nq = 5.8  1028 electrons/m3. What is the drift velocity of these electrons?
 
  A)
 
  2.7  10-5 m/s
  B)
 
  9.1  10-5 m/s
  C)
 
  5.2  10-5 m/s
  D)
 
  1.1  10-5 m/s
  E)
 
  7.4  10-5 m/s

Question 2

A coil with a self-inductance of 6 H has a constant current of 2 A flowing through it for 2 seconds. What is the emf induced in this coil?
 
  A)
 
  6 V
  B)
 
  12 V
  C)
 
  0 V
  D)
 
  4 V
  E)
 
  8 V

[asdfghjkl;]

Answer to Question 1

A

Answer to Question 2

C

[panfilo]

Excellent

[essyface1]

TYSM