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Electricity can be defined as the flow of electric charge, but that's not enough. Do you really know how electricity is generated? And from where does it come? There are a number of questions unanswered. This quiz has been developed for students, researcher and learners to gain and test their knowledge about electricity. So, let's try out the quiz. All the best!

• 1.

### When electricity is flowing in a complete path that is called ______________ circuit.

• A.

Closed

• B.

Open

• C.

Light bulb

A. Closed
Explanation
When electricity is flowing in a complete path, it means that the circuit is closed. A closed circuit allows the current to flow continuously, as there are no breaks or interruptions in the path. In a closed circuit, the electrical energy can flow from the power source, through the connected components (such as light bulbs or other devices), and back to the power source again. This enables the proper functioning of electrical systems and devices.

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• 2.

### When electricity is not flowing that is called a ___________ circuit.

• A.

Hammer

• B.

Open

• C.

Closed

• D.

Sun

• E.

Moon

B. Open
Explanation
When electricity is not flowing, it is referred to as an "open" circuit. In an open circuit, there is a break or gap in the path of the electrical current, preventing it from flowing and completing the circuit. This can occur when a switch is turned off or when there is a disconnected wire or component. In contrast, a closed circuit allows electricity to flow continuously as there are no breaks or interruptions in the circuit.

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• 3.

### Does a light bulb light up with a gap in it _______?

• A.

Yes

• B.

No

B. No
Explanation
A light bulb does not light up with a gap in it because the gap interrupts the flow of electricity, preventing the bulb from receiving the necessary current to produce light.

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• 4.

### Two particles with the same charge will repel or drive away from each other

• A.

True

• B.

False

A. True
Explanation
Two particles with the same charge will repel each other due to the electromagnetic force. This force arises from the interaction between the electric fields produced by the charged particles. According to Coulomb's law, like charges repel each other, while opposite charges attract. Therefore, the correct answer is true.

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• 5.

### When one has connected a conductor, a source of electricity such as a battery and an appliance such as a bulb, one has created an electric

• A.

Insulator

• B.

Circuit

• C.

Switch

• D.

None of the above

B. Circuit
Explanation
When a conductor, a source of electricity such as a battery, and an appliance such as a bulb are connected together, it forms a complete pathway for the flow of electric current. This pathway is called an electric circuit. In an electric circuit, the electric current flows from the source, through the conductor, and into the appliance, allowing it to function. Therefore, the correct answer is Circuit.

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• 6.

### This is the measure of electric current.

• A.

Ohm

• B.

Ampere

• C.

Volt

• D.

Coulomb

B. Ampere
Explanation
The measure of electric current is represented by the unit "ampere". It is named after the French physicist André-Marie Ampère, who made significant contributions to the field of electromagnetism. Ampere is defined as the amount of electric charge passing through a given point in a circuit per unit time. It is a fundamental unit in the International System of Units (SI) and is commonly used to quantify the flow of electrons in electrical circuits.

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• 7.

### This measures resistance to the flow of electricity.

• A.

Ohm

• B.

Ampere

• C.

Volt

• D.

Coulomb

A. Ohm
Explanation
The ohm is the correct answer because it is the unit of measurement for electrical resistance. Resistance refers to the opposition that a material or device offers to the flow of electric current. The higher the resistance, the more difficult it is for electricity to flow through the material or device. Therefore, measuring resistance in ohms allows us to understand how easily or difficultly electricity can pass through a circuit or component.

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• 8.

### This device is used to open and close a circuit.

• A.

Battery

• B.

Bulb

• C.

Switch

• D.

None of the above

C. Switch
Explanation
A switch is a device that is used to open and close a circuit. It acts as a bridge between two conductors, allowing or blocking the flow of electric current. When the switch is closed, the circuit is complete and current can flow through it, enabling the connected device or load to operate. Conversely, when the switch is open, the circuit is broken and current cannot flow, effectively turning off the device or load. Therefore, a switch is the correct answer as it is specifically designed for the purpose of opening and closing circuits.

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• 9.

### The positive terminals or ends of the batteries and appliances are wired together and the negative ends of batteries and appliances are wired together in this kind of circuit

• A.

Short

• B.

Series

• C.

Parallel

• D.

None of the above

C. Parallel
Explanation
In a parallel circuit, the positive terminals or ends of the batteries and appliances are wired together, and the negative ends are also wired together. This allows for multiple paths for the flow of current, with each component receiving the same voltage. In this configuration, if one component fails or is removed, the others will continue to function independently.

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• 10.

### These materials conduct electricity under certain circumstances

• A.

Insulators

• B.

Conductor

• C.

Semiconductor

• D.

None of the above

C. Semiconductor
Explanation
Semiconductors are materials that have properties between those of insulators and conductors. They can conduct electricity under certain circumstances, such as when exposed to heat or light. Unlike conductors, semiconductors do not conduct electricity as easily, but they have the ability to do so under specific conditions. This makes them useful in electronic devices such as transistors and diodes, where their conductivity can be controlled and manipulated.

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