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FEE > FEE Flashcards - Lecture 5 (1) > Flashcards

FEE Flashcards - Lecture 5 (1)

1
Q

is an instrument used to measure current and must be connected in series with the circuit.

A

AMMETER

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2
Q

an instrument used to measure potential difference and must be connected in parallel with the part of the circuit whose potential difference is required.

A

VOLTMETER

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3
Q

an instrument for measuring resistance.

A

Ohmmeter

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4
Q

universal instrument, may be used to measure voltage, current and resistance.

A

MULTIMETER

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5
Q

may be used to observe waveforms and to measure voltages

A

OSCILLOSCOPE

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6
Q

an instrument for the measurement of power in an electrical circuit.

A

WATTMETER

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7
Q

may be used to measure both continuity and insulation

A

MEGGER

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8
Q

Produces energy in the form of voltage or current

A

ACTIVE CIRCUIT ELEMENTS

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9
Q

Stores energy in the form of voltage or current

A

PASSIVE CIRCUIT ELEMENTS

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10
Q

They do not have function to provide power gain

A

PASSIVE CIRCUIT ELEMENTS

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11
Q

They have function and provide power gain

A

ACTIVE CIRCUIT ELEMENTS

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12
Q

Examples of active circuit elements

A

DC generators, current, voltages, batteries

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13
Q

Examples of passive circuit elements

A

resistors, capacitors, inductors

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14
Q

characterized by terminal voltage and completely independent of the current through it.

A

Ideal Independent Voltage Source

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15
Q

the current through it is completely independent of the voltage across it.

A

Ideal Independent Current Source

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16
Q

in which the source quantity is determined by a voltage or current existing some other location in the electric system under examination.

A

Dependent/Controlled Source

17
Q

Used to impede the flow of current.

A

Resistor

18
Q

Types of ACTIVE CIRCUIT ELEMENTS

A

Independent and Dependent Source

19
Q

TYPES OF RESISTORS

A

Fixed value Resistor and Variable Resistor

20
Q

has a fixed amount of resistance in the circuit.

A

Fixed value Resistor

21
Q

in this, the value of resistance is not fixed.

A

Variable Resistor

22
Q

the amount (in percent) by which the actual ohmic resistance can be different from the color coded value.

A

Tolerance

23
Q

Designed to store energy in its electric field and are often found in power supplies

A

CAPACITORS

24
Q

ratio of the charge on one plate of a capacitor to the voltage difference between the two plates,

A

Capacitance

25
Q

Unit of Capacitance

A

Farad (F)

26
Q

Capacitance formula

A

C = Q/V (current/voltage)

27
Q

Designed to store energy in its magnetic field. It consists of a coil conducting wire.

A

INDUCTORS

28
Q

The property whereby an inductor exhibits opposition to the change of current flowing through it, measured in henrys (H)

A

Inductance

FEE (6 decks)

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