A metal sphere is insulated electrically and is given a charge. ...

[daltonest1984]

A metal sphere is insulated electrically and is given a charge. If 50 electrons are added to the sphere in giving a charge, how many Coulombs are added to the sphere?
 
  A) -8.0  10-18 C
  B) -8.0  10-20 C
  C) -80 C
  D) -50 C

Question 2

A uniform magnetic field is applied perpendicular to the plane of a 60-turn circular coil with a radius of 6.0 cm and a resistance of 0.60 .
 
  If the magnetic field increases uniformly from 0.20 T to 1.8 T in 0.20 s, what is the magnitude of the emf induced in the coil?
  A) 7.2 V
  B) 5.4 V
  C) 9.2 V
  D) 12 V
  E) 16 V

[quynhmickitran]

Answer to Question 1

A

Answer to Question 2

B

[daltonest1984]

TYSM

[daiying98]

Gracias!