Name: ______________________ Class: _________________ Date: _________ ID: C
w10q1
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
____ 1. A spherical volume of space has an electric field of intensity 100 N/C directed radially outward from
its surface of radius 0.600 m. What is the net charge enclosed within this surface?
a. 6.8 nC
b. 4.0 nC
c. -6.8 nC
d. -4.0 nC
e. 6.0 nC
____ 2. Imagine a charge of -5nC placed at the position x=0, y=+1 cm and another charge of +15nC placed
at x=-3 cm, y=1 cm. Find the magniude of the force that wuld be exerted on a third charge with Q=
10nC placed at the origin
a. 5.9 mN c. 3.2 mN
b. 7.8mN d. 4.3 mN
____ 3. Two point charges each have a value of 30.0 mC and are separated by a distance of 4.00 cm. What is
the magnitude of the electric field midway between the two charges? (ke = 8.99 × 109 N·m2/C2)
a. zero
b. 5.1 × 107 N/C
c. 10.1 × 107 N/C
d. 40.5 × 107 N/C
e. 20.3 × 107 N/C
____ 4. Electrons in a particle beam each have a kinetic energy of 3.2 × 10−17 J. What is the magnitude of the
electric field that will stop these electrons in a distance of 0.2 m? (e = 1.6 × 10−19 C)
a. 2 000 N/C
b. 500 N/C
c. 100 N/C
d. 1 000 N/C
e. 5 000 N/C
____ 5. A Van de Graaff generator (a device used for storing charge) contains a spherical metallic dome of
radius 20 cm. Operating in dry air, where "atmospheric breakdown" is at Emax = 3.0 × 106 N/C, what
is the maximum charge that can be held on the dome? (ke = 8.99 × 109 N⋅m2/C2)
a. 1.2 × 10−6 C
b. 2.5 × 10−6 C
c. 2.7 × 10−5 C
d. 1.3 × 10−5 C
e. 2.6 × 10−6 C
1
w10q1
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
____ 1. A spherical volume of space has an electric field of intensity 100 N/C directed radially outward from
its surface of radius 0.600 m. What is the net charge enclosed within this surface?
a. 6.8 nC
b. 4.0 nC
c. -6.8 nC
d. -4.0 nC
e. 6.0 nC
____ 2. Imagine a charge of -5nC placed at the position x=0, y=+1 cm and another charge of +15nC placed
at x=-3 cm, y=1 cm. Find the magniude of the force that wuld be exerted on a third charge with Q=
10nC placed at the origin
a. 5.9 mN c. 3.2 mN
b. 7.8mN d. 4.3 mN
____ 3. Two point charges each have a value of 30.0 mC and are separated by a distance of 4.00 cm. What is
the magnitude of the electric field midway between the two charges? (ke = 8.99 × 109 N·m2/C2)
a. zero
b. 5.1 × 107 N/C
c. 10.1 × 107 N/C
d. 40.5 × 107 N/C
e. 20.3 × 107 N/C
____ 4. Electrons in a particle beam each have a kinetic energy of 3.2 × 10−17 J. What is the magnitude of the
electric field that will stop these electrons in a distance of 0.2 m? (e = 1.6 × 10−19 C)
a. 2 000 N/C
b. 500 N/C
c. 100 N/C
d. 1 000 N/C
e. 5 000 N/C
____ 5. A Van de Graaff generator (a device used for storing charge) contains a spherical metallic dome of
radius 20 cm. Operating in dry air, where "atmospheric breakdown" is at Emax = 3.0 × 106 N/C, what
is the maximum charge that can be held on the dome? (ke = 8.99 × 109 N⋅m2/C2)
a. 1.2 × 10−6 C
b. 2.5 × 10−6 C
c. 2.7 × 10−5 C
d. 1.3 × 10−5 C
e. 2.6 × 10−6 C
1
