Question

ANSWER ALL PLZ

1. The total electric flux from a cubical box 24.0 cm on a side is 1.70×10³ N⋅m2/C .

a. What charge is enclosed by the box?

Q = ______ C

b. What is the total electric flux through ONE face of the cube? (assume the charge is in the center of the cube)

= _____ Nm2/C

c. If the linear dimensions of the cube DOUBLE, what is the total electric flux through the cubic surface now?

= ____ Nm2/C

2. A solid metal sphere of radius 2.00 m carries a total charge of -7.40 μC .

a. What is the magnitude of the electric field at a distance from the sphere's center of 0.20 m ?

= ____ N/C

b. What is the magnitude of the electric field at a distance from the sphere's center of 1.90 m ?

= _____ N/C

c. What is the magnitude of the electric field at a distance from the sphere's center of 2.05 m ?

= ____ N/C

d. What is the magnitude of the electric field at a distance from the sphere's center of 5.20 m ?

= _____ N/C

3. A flat circle of radius 18 cm is placed in a uniform electric field of magnitude 5.7×10² N/C .

a. What is the electric flux through the circle when its face is perpendicular to the field lines?

= _____ N⋅m2/C

b. What is the electric flux through the circle when its face is at 60 degrees to the field lines?

= _____ N⋅m2/C

c. What is the electric flux through the circle when its face is parallel to the field lines?

= _____ N⋅m2/C

4. An electron acquires 6.85×10⁻¹⁶ J of kinetic energy when it is accelerated by an electric field from plate A to plate B.

a. What is the potential difference between the plates?

ΔV =

b. Which plate is at the higher potential?

Answer 1