Author Question: An electric field is set up between two parallel plates, each of area 2.0 m2, by putting 1.0 C ... (Read 38 times)

jasdeep_brar · **on:** Jul 29, 2018

An electric field is set up between two parallel plates, each of area 2.0 m2, by putting 1.0 C charge on one plate and a -1.0 C charge on the other. The plates are separated by 4.0 mm.

What is the magnitude of the electric field between the plates at a distance of 1.0 mm from the positive plate? A)

4.2 104 N/C
B)

1.4 104 N/C
C)

3.1 104 N/C
D)

0 N/C
E)

5.6 104 N/C

Question 2

An object moves in a direction parallel to its length with a velocity that approaches the velocity of light. The width of this object, as measured by a stationary observer,

A)

approaches infinity.
B)

approaches zero.
C)

increases slightly.
D)

decreases slightly.
E)

does not change.