Physics and Energy Generation Quiz

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What is the fundamental principle behind the operation of a solar cell?

The electromagnetic induction

The photovoltaic effect (correct)

The thermoelectric effect

The piezoelectric effect

What is a solar cell in its most basic form?

A p-n junction diode (correct)

A capacitive circuit

An inductive coil

A resistive load

What is the term used to describe the combination of individual solar cells?

Solar cluster

Solar panel (correct)

Solar array

Solar module

What is the characteristic of a device that changes its electrical properties when exposed to light?

Photoelectricity Signup and view all the answers

What is the primary function of a solar cell?

To convert light energy into electrical energy Signup and view all the answers

What is another term used to describe a solar cell?

Photoelectric cell Signup and view all the answers

What happens to the concentration of holes on the p-type side as the concentration of electrons on the n-type side increases?

It increases Signup and view all the answers

What is the voltage generated across the p-n junction due to the difference in concentration of electrons and holes?

Photovoltage Signup and view all the answers

What is the purpose of doping silicon in the manufacturing process of solar cells?

To allow electricity to flow through it in a specific way Signup and view all the answers

What type of material is silicon, and what are its properties?

Semiconductor, does not naturally conduct electricity but can be made to do so Signup and view all the answers

What is the characteristic of p-type silicon?

It has a small number of electrons Signup and view all the answers

What is the structure of a solar cell?

A sandwich of two layers of silicon Signup and view all the answers

What is the characteristic of spin alignment in antiferromagnetic materials?

Antiparallel manner Signup and view all the answers

Which type of magnetic material has a large magnetization even for a small applied external field?

Ferrimagnetic material Signup and view all the answers

What is the property of soft magnetic materials that makes them suitable for making electromagnets?

Easy magnetization and demagnetization Signup and view all the answers

What happens to the susceptibility of antiferromagnetic materials beyond the Neel temperature?

It decreases Signup and view all the answers

Which type of magnetic material has a small and positive susceptibility that depends on temperature?

Antiferromagnetic material Signup and view all the answers

What is the characteristic of the hysteresis loop of soft magnetic materials?

Small and narrow Signup and view all the answers

What happens to a ferromagnetic substance when it is inserted in a current-carrying coil?

It becomes magnetized Signup and view all the answers

What is the purpose of hysteresis in a ferromagnetic substance?

To demagnetize the substance by reversing the direction of the current Signup and view all the answers

What is the point at which the magnetic flux density remains constant, regardless of the magnetic field strength?

Saturation point Signup and view all the answers

What is the term for the amount of force required to remove a material's retentivity?

Coercive force Signup and view all the answers

What is the result of the hysteresis loop in electric machines' ferromagnetic cores?

Hysteresis loss Signup and view all the answers

What is the process of continuously monitoring the magnetic flux released by a ferromagnetic substance as the external magnetizing field is altered?

Hysteresis loop formation Signup and view all the answers

What is the primary characteristic of a Schottky diode?

Low forward voltage drop Signup and view all the answers

What type of contact is formed when a metal and a semiconductor are joined, allowing current to pass in one direction?

Rectifying contact Signup and view all the answers

What is the term used to describe the highest energy level that an electron can occupy at absolute zero temperature?

Fermi Level Signup and view all the answers

What is the purpose of an energy level diagram in understanding the working of a Schottky diode?

To understand the energy levels of the semiconductor Signup and view all the answers

What is the difference between a rectifying contact and an ohmic contact?

Rectifying contact allows current to flow in one direction, while ohmic contact allows current to flow in both directions Signup and view all the answers

What is the condition at which the Fermi level is considered as the sea of fermions?

At absolute zero temperature Signup and view all the answers