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Semiconductor Diodes and Current Flow

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Questions and Answers

What is the primary difference between P-type and N-type semiconductors?

The conductivity of the materials themselves

The doping process used to create them

The charge carriers that are present in them

The type of impurities used to dope them (correct)

What is the effect of temperature on the forward bias voltage of a semiconductor diode?

It has no effect on the forward bias voltage

It makes the diode act as an ideal switch

It increases the required forward bias voltage

It reduces the required forward bias voltage (correct)

What is the depletion region in a p-n junction?

A region with an abundance of charge carriers

A region with a high electrical resistance

A region with a high concentration of impurities

A region with no charge carriers (correct)

What is the characteristic of an ideal diode in the forward bias region?

It acts as a short circuit with zero resistance Signup and view all the answers

What is the effect of reverse bias on the depletion region in a p-n junction?

It widens the depletion region Signup and view all the answers

What is the unit of measurement for the zener voltage in a semiconductor diode?

Volts (V) Signup and view all the answers

What is the primary distinction between electrical and electronics?

Electrical is concerned with the behavior of electrons on conductors and insulators, whereas electronics deals with the behavior of electrons on semiconductors Signup and view all the answers

What is the primary function of the centripetal force in atomic structure?

It is the outward force that opposes the pull of the nucleus on electrons moving in a circular path Signup and view all the answers

What is the significance of the atomic number (Z) in an element?

It is the number of protons in the nucleus, unique to each element Signup and view all the answers

What is the formula for determining the number of electrons in a subshell?

2n^2 (where n is the main number) Signup and view all the answers

What is the general term for positively charged ions?

Cations Signup and view all the answers

What is the main difference between ionic and covalent bonds?

The electronegativity difference between the elements Signup and view all the answers

What is the purpose of doping in semiconductor materials?

To create a p-n junction in the material Signup and view all the answers

What is the flow of free electrons from the positive to the negative terminal called?

Current Signup and view all the answers

What type of bond is formed between two non-metal atoms with a small electronegativity difference?

Nonpolar covalent bond Signup and view all the answers

What is the term for the science that deals with the behavior of electrons on conductors and insulators?

Electrical Signup and view all the answers

What is the minimum number of valence electrons required for an atom to be a semiconductor?

4 Signup and view all the answers