Semiconductor Devices and Electricity

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What is the defining characteristic of a semiconductor material?

High conductivity

Low conductivity (correct)

High resistance

High insulating ability

What is the primary factor determining the magnitude of current in a circuit?

Temperature of the circuit

Voltage applied to the circuit (correct)

Resistance in the circuit

Type of semiconductor material used

What is the role of doping in semiconductor devices?

Increase the resistance

Decrease the resistance

Increase the conductivity (correct)

Decrease the conductivity

What is the primary reason for using semiconductor devices in electronic circuits?

High efficiency Signup and view all the answers

What determines the electrical properties of a material?

The energy gap between valence and conduction bands Signup and view all the answers

What is the energy gap between the valence and conduction bands called?

Forbidden band Signup and view all the answers

How do insulators differ from conductors and semiconductors in terms of the energy gap?

Insulators have a large energy gap Signup and view all the answers

What happens when thermal energy causes an electron to jump from the valence band to the conduction band?

It produces a hole - electron pair Signup and view all the answers

How can semiconductors be made better conductors?

By adding impurities to contribute extra electrons or extra holes Signup and view all the answers

How does the distance between atoms affect the behavior of electrons in semiconductors?

The distance causes the electrons to spread out into bands Signup and view all the answers

What kind of crystal structure do semiconductors have?

Regular crystalline structure in monocrystals only Signup and view all the answers

How are electrons assigned to shells and subshells?

From inside out Signup and view all the answers

What determines whether thermal energy is enough to cause an electron to jump from the valence band to the conduction band?

The size of the energy gap Signup and view all the answers

What is responsible for producing n type silicon when introduced into the silicon lattice?

Phosphorus and arsenic as donor dopants Signup and view all the answers

What happens when elements with 3 outer electrons are added as dopants to silicon?

They accept an electron from silicon Signup and view all the answers

What is the defining characteristic of a semiconductor material?

Neither a good conductor nor a good insulator Signup and view all the answers

What is responsible for producing n type silicon when introduced into the silicon lattice?

Doping with acceptor impurities Signup and view all the answers

How do insulators differ from conductors and semiconductors in terms of the energy gap?

Insulators have a larger energy gap than semiconductors Signup and view all the answers

What determines whether thermal energy is enough to cause an electron to jump from the valence band to the conduction band?

The size of the energy gap Signup and view all the answers

In which subshell can a maximum of 10 electrons be accommodated?

d Signup and view all the answers

What determines the electrical properties of a semiconductor material?

Energy gap between bands Signup and view all the answers

What are the elements that accept an electron from the silicon lattice known as?

Acceptor dopants Signup and view all the answers

What is responsible for producing n type silicon when introduced into the silicon lattice?

Donor dopants Signup and view all the answers

Which type of material has a moderate energy gap, allowing only a few electrons to jump to the conduction band?

Semiconductors Signup and view all the answers

What do insulators have that prevents electrons from jumping to the conduction band?

Large energy gap Signup and view all the answers

What happens when thermal energy causes an electron to jump from the valence band to the conduction band?

Creation of electron-hole pairs Signup and view all the answers

What is the primary purpose of adding impurities (dopants) to semiconductors?

To contribute extra electrons or holes Signup and view all the answers

Semiconductor Devices and Electricity

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Questions and Answers

What is the defining characteristic of a semiconductor material?

What is the primary factor determining the magnitude of current in a circuit?

What is the role of doping in semiconductor devices?

What is the primary reason for using semiconductor devices in electronic circuits?

What determines the electrical properties of a material?

What is the energy gap between the valence and conduction bands called?

How do insulators differ from conductors and semiconductors in terms of the energy gap?

What happens when thermal energy causes an electron to jump from the valence band to the conduction band?

How can semiconductors be made better conductors?

How does the distance between atoms affect the behavior of electrons in semiconductors?

What kind of crystal structure do semiconductors have?

How are electrons assigned to shells and subshells?

What determines whether thermal energy is enough to cause an electron to jump from the valence band to the conduction band?

What is responsible for producing n type silicon when introduced into the silicon lattice?

What happens when elements with 3 outer electrons are added as dopants to silicon?

What is the defining characteristic of a semiconductor material?

What is responsible for producing n type silicon when introduced into the silicon lattice?

How do insulators differ from conductors and semiconductors in terms of the energy gap?

What determines whether thermal energy is enough to cause an electron to jump from the valence band to the conduction band?

In which subshell can a maximum of 10 electrons be accommodated?

What determines the electrical properties of a semiconductor material?

What are the elements that accept an electron from the silicon lattice known as?

What is responsible for producing n type silicon when introduced into the silicon lattice?

Which type of material has a moderate energy gap, allowing only a few electrons to jump to the conduction band?

What do insulators have that prevents electrons from jumping to the conduction band?

What happens when thermal energy causes an electron to jump from the valence band to the conduction band?

What is the primary purpose of adding impurities (dopants) to semiconductors?

What causes a semiconductor's subshells to spread out into bands as the distance between atoms decreases?

What is the defining characteristic of a conductor in terms of its energy gap?

How many possible electrons can be found in the upper band of semiconductors?

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