quiz9 Flashcards

1
Q

An Ideal capacitor does not dissipate power

A

True

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2
Q

The amount of charge that a capacitor can
store depends on the applied

A

Voltage

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3
Q

Capacitance is directly proportional to plate
spacing.

A

—False

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4
Q

. The difference in voltage between the
source and the capacitor decreases and hence
the rate of movement of electrons decreases
as the capacitor approaches full charge.

A

— True

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5
Q

Dielectric are the following, except;

A

— Copper

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6
Q

Unlike charges attract and like charges
repel a work exists between them.

A

False

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7
Q

If disconnected from the source, the
capacitor will automatically discharge.

A

— False

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8
Q

The unit of capacitance, the farad, is
named after James Faraday.

A

— False

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9
Q

Example of the dielectric used in fixed
capacitors.

A

— All of these Right

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10
Q
A
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11
Q

Variable Capacitors has a set of stationary
plates and a set of movable plates which are
ganged together and mounted on a shaft.

A

— True

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12
Q

Capacitor is a measure of how much
charge a capacitor can hold.

A

— False

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13
Q

Capacitors are widely used in______ and
_______ applications
—Electrical and Electronic

A

—Electrical and Electronic

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14
Q

Total capacitance is always smaller than
the biggest capacitance when connected
series.
— False

A

— False

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15
Q

The region where this force exists is called
an electric_____

A

—Field

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16
Q

A capacitor consists of two conductors
separated by an Insulator, called a

A

—- Dielectric

17
Q

Dielectric is a factor by which capacitance
Increases for a number of different materials
based on the relative permittivity of ______

18
Q

As charge is deposited on the plates, the
capacitor_______ builds.

19
Q

The figure shows the uncharge state of the
capacitor.

20
Q

The graph shows the current during
charging.

21
Q

When the capacitor is discharged, this
stored energy is returned to the circuit.

22
Q

The capacitance of a capacitor is one farad
If It stores one coulomb of charge when the
voltage across its terminals is ten volts.

23
Q

Capacitance is directly proportional to plate
area.

24
Q

___________ in a capacitor exists only
while capacitor voltage is changing

25
The given circuit shows a charged capacitor.
True
26
. Electric fields are force fields that exist in the region surrounding charged bodies
True
27
Current in the circuit during charging is due solely to the movement of electrons from one plate to the other around the external circuit; current passes through the dielectric between the plates.
False
28
__________ is a circuit component designed to store electrical charge.
Capacitor
29
. Faraday published his theory in 1844.
True
30
Fixed Capacitors are often identified by their dielectric.
True
31
Total capacitance is the sum of the individual capacitances when connected parallel.
True
32
___________ Is the electrical property of capacitors.
Capacitance