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Electrical Components and Symbols - JSS1 Basic technology Past Questions and Answers - page 2

11

What is the primary function of capacitors in electronic circuits?

A

To store and release electrical energy

B

To regulate the flow of electric current

C

To amplify electrical signals

D

To act as a switch

correct option: a
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12

Why are circuit symbols important in electrical diagrams?

A

To confuse engineers

B

To provide detailed drawings of components

C

To represent electrical components and connections

D

To measure the temperature of components

correct option: c
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13

Which component is represented by a zigzag line in circuit diagrams?

A

Capacitor

B

Resistor

C

Diode

D

Transistor

correct option: b
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14

What is the primary benefit of understanding circuit diagrams?

A

Enhancing cooking skills

B

Predicting circuit behaviour

C

Learning gardening techniques

D

Improving painting techniques

correct option: b
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15

What is the main purpose of practical application of circuit diagrams?

A

To confuse students

B

To reinforce learning

C

To discourage problem solving

D

To measure the weight of components

correct option: b
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16

What is the primary purpose of electrical components in electronic circuits?

Electrical components primarily regulate the flow of electric current within electronic circuits. They control the amount of current passing through a circuit, ensuring proper operation and preventing damage to sensitive components.

 

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17

What do circuit symbols represent in electrical diagrams?

Circuit symbols serve as graphical representations of electrical components and connections in electrical diagrams. They provide a standardised way to convey information about the components and their functions without needing detailed drawings.

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18

Which component stores and releases electrical energy?

Capacitors are electrical components that store and release electrical energy. They store energy in an electric field when charged and release it when discharged, making them useful for various applications such as smoothing power supply voltages or filtering signals.

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19

What is the function of resistors in electrical circuits?

Resistors regulate the flow of electric current in electrical circuits by resisting the flow of electrons. They are commonly used to limit current, adjust signal levels, divide voltages, and terminate transmission lines, among other functions.

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20

What do circuit symbols provide in electrical diagrams?

Circuit symbols provide a standardised representation of electrical components and connections in electrical diagrams. They convey essential information about the type, function, and orientation of components, enabling engineers and technicians to design, analyse, and troubleshoot circuits efficiently.

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