Calculate the current through a 10.0-m long 22 gauge (having ...

[saliriagwu]

Calculate the current through a 10.0-m long 22 gauge (having radius 0.321 mm) nichrome wire if it is connected to a 12.0-V battery. The resistivity of nichrome is 100  10-8   m.
 
  A) 17.5 A
  B) 30.9 A
  C) 61.8 A
  D) 388 mA
  E) 776 mA

Question 2

Two point charges of +1.0 C and -2.0 C are located 0.50 m apart.
 
  What is the minimum amount of work needed to move the charges apart to double the distance between them? (k = 1/40 = 8.99  109 N  m2/C2)
  A) -36 mJ
  B) +18 mJ
  C) 0 mJ
  D) +36 mJ
  E) -18 mJ

[BUTTHOL369]

Answer to Question 1

D

Answer to Question 2

B

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