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Worksheetscapacitors-Part1
Total questions: 10
Worksheet time: 7mins
Name
Class
Date
1.
If the charge on a parallel-plate capacitor is doubled:
a)
the capacitance is halved
b)
the capacitance is doubled
c)
the electric field is halved
d)
the electric field is doubled
2.
The capacitance of a parallel-plate capacitor is:
a)
proportional to the plate area
b)
proportional to the charge stored
c)
independent of any material inserted between the plates
d)
proportional to the potential difference of the plates
3.
The capacitance of a parallel-plate capacitor can be increased by:
a)
increasing the charge
b)
decreasing the charge
c)
increasing the plate separation
d)
decreasing the plate separation
4.
If both the plate area and the plate separation of a parallel-plate capacitor are doubled, the capacitance is:
a)
doubled
b)
halved
c)
unchanged
d)
one-fourth the original
5.
A parallel-plate capacitor has a plate area of 0.2 m2 and a plate separation of 0.1 mm. To obtain an electric field of 2.0 ´ 106 V/m between the plates, the magnitude of the charge on each plate should be:
a)
3.5 ´ 10-6 C
b)
7.1 ´ 10-6 C
c)
1.4 ´ 10-5 C
d)
1.8 ´ 10-5 C
6.
What is the voltage across the plates of the capacitor if the capacitance is 10 uF and the Charge stored is 30 uC?
a)
0.333 V
b)
3 V
c)
300 V
7.
The figure to the right represents:
a)
Capacitor
b)
Diode
c)
Inductor
d)
Resistor
8.
With respect to the capacitor, which relationship is true?
a)
C = Q/V
b)
V = C×Q
c)
Q = C/V
d)
Q = V/C
9.
If the capacitance is 47μF, and the voltage difference across the capacitor terminals is 6V, then the energy stored in that capacitor is:
a)
846×10-6Joule
b)
7.23×10-3 Joule
c)
6.76×10-5Joule
d)
5.94×10-2Joule
10.
If C is the capacitance in Farads, ϵ permittivity of the dielectric, A area of plate overlap in square meters and d distance between plates in meters, then:
a)
C = ϵd/A
b)
C = A/ϵd
c)
C = ϵA/d
d)
C = d/ϵA
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