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Electrical Symbols (HARD MODE)

Total questions: 122

Worksheet time: 2hrs 2mins

Name
Class
Date
1.

are the standard technique to represent an electrical circuit. It makes the graphical representation easier to work on and implement. It represents various components, devices, and functionalities present in a circuit. It helps to show the details of an electrical diagram so that the engineer can adequately plan a circuit before actually working on it.

(a)  

2.

works as electrical shock protection. It is a zero potential reference point from where an electrician measures the current.




(a)  

3.


is mainly a device or rod that can capture different

waves and signals, including electromagnetic waves, electric signals, and more.



(a)  

4.

has two disjointed and disproportionate parallel lines. The lines are present to signify the series cells in the battery.

(a)  

5.

is a power source for an electronic device when there are plus and minus signs that indicate a DC when it has a wave that signifies AC.

(a)  

6.

protects a circuit from getting burnt by disconnecting it when the current flow through the circuit goes beyond the set limit. The Fuse has a wire which gets melt while the connection gets disconnected.

(a)  

7.

 is like a coil present in a magnetic field or flux to conserve energy.

(a)  

8.

 is an electronic device that works on transforming electric energy into a mechanical one.

(a)  

9.

 is an electric symbol that looks like a circle that has a cross in the middle, and it gives an output by getting light up when a current passes through it.

(a)  

10.

are present in an AC circuit after being coupled by a magnetic flux. They reduce the tension in a circuit by maintaining the frequency.

(a)  

11.

is an electrical circuit works as a transmission line. It delivers radio frequency signals and cable television signals. Coaxial plugs in an electrical symbol diagram look like a circle on top of an arrow and another arrow passing through it.




(a)  

12.

are of a diverse variety, for example, single-pole single-throw, pushbutton, dip, relay, and more. A switch connects a circuit when it is closed and disconnects the circuit when open.

(a)  

13.

in an electrical diagram look like wavy lines with pointed ends. The resistors control the current flow in a circuit by dividing voltage, terminating transmission lines, and more.

(a)  

14.

is a symbol that has two terminals with two plates. There is a curved surface having a lower voltage, which identifies a capacitor as polarized.




(a)  

15.

 is a device that allows the current flow to a single direction after being polarized with an anode and a cathode side.




(a)  

16.

 looks similar to a usual diode symbol with small arrows that indicate the radiation of light.




(a)  

17.

A straight line represents the (a)   or a power line in an electrical diagram, and it works as the conductor of electric current in the circuit diagram.

18.

shows when in a circuit, there are two unconnected wires. A designer can draw two parallel lines with a half-circle on one line at the middle parts where it bisects the third line to represent not connected wires.




(a)  

19.

in a circuit allows the current to travel from one point to another. The connected wire symbol looks like two parallel lines emerging from a two-point while one gets extended. (a)   represents the connection between two conductors.


20.

is an ON/ OFF switch with the poles to stand for the number of poles to connect.




(a)  

21.

 lets the current flow in a circuit adjust its position to two directions

(a)  

22.

that is usually open needs a switch to turn ON. The user needs to push the button to switch it on. Otherwise, it is open.



(a)  

23.

usually is closed, which means they usually are in the ON stage, and the user needs to release it to turn it OFF.




(a)  

24.

allows the user to select one from 0 to 5 volts. They are not grounded and therefore require external sources.

(a)  

25.

has four terminals, two terminals for staying connected or disconnected, while two others are for two coils.




(a)  

26.

 a small metal connector, works as an ON/OFF Switch, and they are widely used together for the configuration of hardware devices.

(a)  

27.

serve as permanent switches. When a user solders between the two parts of the bridge, it gets shorted while disconnecting it. They need to desolder it.




(a)  

28.

is a way to switch between two circuits and has a coil, a common terminal, a closed terminal, and a normally open terminal if the coil remains closed, the common terminal and the normally closed terminal works.

(a)  

29.

The symbol represents _______ or ____________________ in a circuit. The current flow continuously changes direction.




(a)  

30.

 is a supplier of electric energy in a circuit, and the (a)   has current flow in a single direction.


31.

 is an independent current source that is responsible for a constant current flow.




(a)  

32.

works while depending on the current input. It is present in an electric circuit to either deliver or absorb current. The symbol has a circle and an arrow sign that shows the current flow

(a)  

33.

in a circuit looks like a diamond-shaped quadrilateral with a positive sign and a negative sign. The voltage in the circuit controls the controlled voltage sources.




(a)  

34.

in a circuit looks like two unmatched parallel lines, one big and one small, representing one cell.




(a)  

35.

has multiple small and big lines, which represent multiple cells identifying as cathode and anodes.




(a)  

36.

in a circuit acts either as a voltage source or a current source. Moreover, a generator can also fit into a circuit based on this.

(a)  

37.

is a zero potential ground that has a potential to conduct to earth.

(a)  

38.

protects a user from electric shock by creating a barrier between the user and the circuit.

(a)  

39.

is an arbitrary reference point that is relative to the potential of the earth's ground.




(a)  

40.

is a symbol of a fixed resistor and looks like waves with pointed heads and gets connected to two points at the end.




(a)  

41.

is a two-terminal device, and the IEC standard resistor symbol looks like a bar connected to two points.

(a)  

42.

is a three-terminal resistor that creates an adjustable voltage in an electrical circuit.




(a)  

43.

is a three-terminal resistor that creates an adjustable voltage in an electrical circuit.




(a)  

44.

uses one or more terminals in the devices, which are voltage-dividers.




(a)  

45.

is a circuit dissipating the current flow to step down the voltage.

(a)  

46.

is a semiconductor that works as a joining point for capacitors, inductors, and resistors.




(a)  

47.

The device helps to create a variable current by creating a variable resistance.

(a)  

48.

is a component that offers variable resistance to an electrical circuit.




(a)  

49.

shows a change in resistance when an external magnetic field affects it.




(a)  

50.

The _______ symbol of a ____________________ has a bar, similar to the symbol of a resistor. However, to show the variable current, there is an arrow.

(a)  

51.

adjusts a circuit and helps calibrate a new device.




(a)  

52.

It is a resistance thermometer dependent on the temperature.

(a)  

53.

It is a device that helps to create resistance by converting light energy or brightness.




(a)  

54.

 is an electrical circuit that looks like a straight line and a half-circle line posed side by side.

(a)  

55.

an (a)   in a circuit, the user can use parallel marks with lines going on sides.


56.

shows a straight plate and a curved one. The straight plate stands for an anode, while the curved plate is a cathode.




(a)  

57.

Two separate straight lines represent a (a)   while one of them is a cathode and another plate or line signifies an anode.


58.

It is a capacitor that can have its capacity changed mechanically or electronically.




(a)  

59.

has a dielectric layer and helps in carrying signals through an enclosed path.




(a)  

60.

is an electronic device that stores electronic energy as magnetic energy.




(a)  

61.

have high inductance, and a coil and a rod represent it.




(a)  

62.

Two dotted lines with a coil help represent a (a)   , and it is information one must know.


63.

is an element in a circuit that helps in coupling signals.




(a)  

64.

with varied inductance look like an inductor with an arrow to represent its variable nature.




(a)  

65.

This device directs current flow in a single direction.




(a)  

66.

is one of the devices that helps to maintain a fixed voltage

(a)  

67.

It is a semiconductor with a less forward voltage drop.




(a)  

68.

 show a wide range of capacitance, and it depends on the voltage.

(a)  

69.

It is a semiconductor that creates a negative resistance with the process of tunneling.




(a)  

70.

It is a semiconductor that gets light up when current passes through it.




(a)  

71.

 is a light-sensitive diode.




(a)  

72.

This four-layer semiconductor has a PNPN structure.




(a)  

73.

It is a solid-state semiconductor that works as a bistable switch.




(a)  

74.

is current-limiting or current-regulating in nature.




(a)  

75.

he laser diode is a semiconductor that converts electrical energy into light.




(a)  

76.

passes electronics from the emitter point to the collector point.




(a)  

77.

It is a transistor that controls the electron flow from the emitter to the collector.

(a)  

78.

It is a device that has a compound structure with two bipolar transistors.




(a)  

79.

The (a)   use electrons as a carrier of charge in a circuit.


80.

The primary formation of its is there with P-type with two small parts of n-type.




(a)  

81.

 work by creating an inversion layer of n-type in the p-type body of the transistor.




(a)  

82.

 work by creating an inversion layer of the p-type in the transistor's n-type body.




(a)  

83.

can use only one input and the output in a reverse of the user input.




(a)  

84.

 can work on two or more inputs, and the outputs can be accurate if the inputs are actual.

(a)  

85.

It can use two or more inputs, delivering accurate outputs unless all the inputs are valid.




(a)  

86.

also gets two or more inputs. To have an actual output in (a)   , at least one of the inputs needs to be true.


87.

It is a logic gate with two or more inputs, and none of the input should be confirmed to get the accurate output.




(a)  

88.

It uses two or more inputs, and when they are different, they can generate valid output.




(a)  

89.

logic gate takes two inputs and two outputs. The two inputs are clock inputs and data input.




(a)  

90.

t is a logic gate that channels several inputs into standard single output.




(a)  

91.

It takes one input to develop several digital outputs.




(a)  

92.

It is a logic inverter that allows it to produce either an actual or inverted output.




(a)  

93.

A primary amplifier symbol is a triangle symbol with one input and one output.




(a)  

94.

amplifies weak electric signals, which have two input pins to give a single output pin.




(a)  

95.

It is a generic symbol of an (a)   that uses three open ends at the top.


96.

It uses two conductors of equal lengths and hence looks like two parallel lines.

(a)  

97.

It has a loop and works on a regular source.




(a)  

98.

To increase or decrease AC voltage, the electricians use (a)   . Two coils have wire linked to it.


99.

It is a transformer that has a single iron core with two coils wound around it.

(a)  

100.

They get used on inductors for the coupling of signals.




(a)  

101.

It is a device that converts electrical energy to kinetic energy.

(a)  

102.

 look like coils that use a core material.




(a)  

103.

It is also a device to convert electrical energy to sound.




(a)  

104.

It is a device to convert electrical energy to sound energy.

(a)  

105.

It is also a device to convert electrical energy to sound.




(a)  

106.

It is a safety device that melts when there is excessive current flow.




(a)  

107.

in a circuit prevents the short circuit by disrupting the current flow.




(a)  

108.

in a circuit denotes the power flow.




(a)  

109.

in a circuit works for data or signals.




(a)  

110.

The symbol of the (a)   may look like a both-sided line with a hollow space within.


111.

This device used light to transfer signals between two separate circuits.




(a)  

112.

is a device that converts electrical energy to sound.



(a)  

113.

It is a device that converts sound energy into electrical energy.




(a)  

114.

It amplifies weak signals.




(a)  

115.

It is present in a circuit to convert an analog input to a digital output.




(a)  

116.

It changes an analog input to a digital one.




(a)  

117.

It works to convert the digital signal into an analog one.




(a)  

118.

It uses mechanical resonance to create an electric signal.




(a)  

119.

It uses frequency to form oscillations.




(a)  

120.

t is a symbol that signifies a single way flow of current.




(a)  

121.

 show light when current passes through them.

(a)  

122.

It is a sensor for determining the temperature change.



(a)