Solar Cell Vocabulary Exam Question
& Answers ( Latest 2025 )
solar cell - CORRECT ANSWERS ✔✔A devise that
changes solar energy into electrical energy
photovoltaics - CORRECT ANSWERS ✔✔generating
electricity from the sun, made of silicon, solar panel, can
get a refund for excess electricity generated/can store
excess
Amortisation - CORRECT ANSWERS ✔✔energetic
amortisation (also known as energy return time) is the
time which a solar electricity system needs to generate
the energy used for its production and installation. when
the period of its energetic amortisation has expired, its
balance of energy is then positive. there is no energetic
amortisation in the case of power plants operated with
fossil fuels
a:Si - CORRECT ANSWERS ✔✔Amorphous silicon.
Silicon material having no definite or regular crystal
structure.
absorber - CORRECT ANSWERS ✔✔In a photovoltaic
device, the material that readily absorbs photons to
generate charge carriers (free electrons or holes).
,Solar Cell Vocabulary Exam Question
& Answers ( Latest 2025 )
Absorption coefficient - CORRECT ANSWERS ✔✔the
factor by which photons are absorbed as they travel a
unit distance through a material.
AC (Alternating Current) - CORRECT ANSWERS ✔✔The
direction of electrical current reverses, usually many (60)
times per second. Electricity transmission networks use
AC because voltage can be controlled with relative ease.
acceptor - CORRECT ANSWERS ✔✔A dopant material,
such as boron, which has fewer outer shell electrons than
required in an otherwise balanced crystal structure,
providing a hole, which can accept a free electron.
Accumulator - CORRECT ANSWERS ✔✔an accumulator
stores electrical energy. in photovoltaics, ac- cumulators
are used for stand-alone systems.
activated shelf life - CORRECT ANSWERS ✔✔The
period of time, at a specified temperature, that a charged
battery can be stored before its capacity falls to an
unusable level.
,Solar Cell Vocabulary Exam Question
& Answers ( Latest 2025 )
Activation Voltage(s): - CORRECT ANSWERS ✔✔The
voltage(s) at which a charge controller will take action to
protect the batteries.
Active solar heater - CORRECT ANSWERS ✔✔A solar
water or space-heating system that moves heated air or
water using pumps or fans.
ACTIVE SOLAR SYSTEM: - CORRECT ANSWERS ✔✔a
solar system that generate electricity or require a
mechanical device (fans, pumps, motors powered by
energy not derived from solar radiation) for collecting,
storing and distributing thermal (heat) energy.
Adjustable set point - CORRECT ANSWERS ✔✔A
feature allowing the user to adjust the voltage levels at
which acharge controller will become active.
AGM - CORRECT ANSWERS ✔✔Absorbed Glass Mat, a
newer type of battery construction that uses saturated
absorbent glass mats rather than gelled or liquid
electrolyte. Somewhat more expensive than flooded
(liquid), but offers very good reliability.
, Solar Cell Vocabulary Exam Question
& Answers ( Latest 2025 )
air mass (sometimes called air mass ratio) - CORRECT
ANSWERS ✔✔. Equal to the cosine of the zenith angle-
that angle from directly overhead to a line intersecting
the sun. The air mass is an indication of the length of the
path solar radiation travels through the atmosphere. An
air mass of 1.0 means the sun is directly overhead and
the radiation travels through one atmosphere (thickness).
2 length of a pat through the earth's atmosphere
traversed by the direct solar beam, expressed as a
multiple of the path traversed to a point at sea level with
the sun directly overhead. Air mass index is defined at
standard barometric pressure. The reference spectrum for
standard test conditions (STC) was defined to be AM1.5
Alternator - CORRECT ANSWERS ✔✔A device for
producing Alternating Current (AC) electricity. Usually
driven by a motor, but can also be driven by other
means, including water and wind power.
Ambient Temperature: - CORRECT ANSWERS ✔✔The
temperature of the surrounding area.
Ammeter - CORRECT ANSWERS ✔✔A device used for
measuring current flow at any point in an electrical
circuit.
& Answers ( Latest 2025 )
solar cell - CORRECT ANSWERS ✔✔A devise that
changes solar energy into electrical energy
photovoltaics - CORRECT ANSWERS ✔✔generating
electricity from the sun, made of silicon, solar panel, can
get a refund for excess electricity generated/can store
excess
Amortisation - CORRECT ANSWERS ✔✔energetic
amortisation (also known as energy return time) is the
time which a solar electricity system needs to generate
the energy used for its production and installation. when
the period of its energetic amortisation has expired, its
balance of energy is then positive. there is no energetic
amortisation in the case of power plants operated with
fossil fuels
a:Si - CORRECT ANSWERS ✔✔Amorphous silicon.
Silicon material having no definite or regular crystal
structure.
absorber - CORRECT ANSWERS ✔✔In a photovoltaic
device, the material that readily absorbs photons to
generate charge carriers (free electrons or holes).
,Solar Cell Vocabulary Exam Question
& Answers ( Latest 2025 )
Absorption coefficient - CORRECT ANSWERS ✔✔the
factor by which photons are absorbed as they travel a
unit distance through a material.
AC (Alternating Current) - CORRECT ANSWERS ✔✔The
direction of electrical current reverses, usually many (60)
times per second. Electricity transmission networks use
AC because voltage can be controlled with relative ease.
acceptor - CORRECT ANSWERS ✔✔A dopant material,
such as boron, which has fewer outer shell electrons than
required in an otherwise balanced crystal structure,
providing a hole, which can accept a free electron.
Accumulator - CORRECT ANSWERS ✔✔an accumulator
stores electrical energy. in photovoltaics, ac- cumulators
are used for stand-alone systems.
activated shelf life - CORRECT ANSWERS ✔✔The
period of time, at a specified temperature, that a charged
battery can be stored before its capacity falls to an
unusable level.
,Solar Cell Vocabulary Exam Question
& Answers ( Latest 2025 )
Activation Voltage(s): - CORRECT ANSWERS ✔✔The
voltage(s) at which a charge controller will take action to
protect the batteries.
Active solar heater - CORRECT ANSWERS ✔✔A solar
water or space-heating system that moves heated air or
water using pumps or fans.
ACTIVE SOLAR SYSTEM: - CORRECT ANSWERS ✔✔a
solar system that generate electricity or require a
mechanical device (fans, pumps, motors powered by
energy not derived from solar radiation) for collecting,
storing and distributing thermal (heat) energy.
Adjustable set point - CORRECT ANSWERS ✔✔A
feature allowing the user to adjust the voltage levels at
which acharge controller will become active.
AGM - CORRECT ANSWERS ✔✔Absorbed Glass Mat, a
newer type of battery construction that uses saturated
absorbent glass mats rather than gelled or liquid
electrolyte. Somewhat more expensive than flooded
(liquid), but offers very good reliability.
, Solar Cell Vocabulary Exam Question
& Answers ( Latest 2025 )
air mass (sometimes called air mass ratio) - CORRECT
ANSWERS ✔✔. Equal to the cosine of the zenith angle-
that angle from directly overhead to a line intersecting
the sun. The air mass is an indication of the length of the
path solar radiation travels through the atmosphere. An
air mass of 1.0 means the sun is directly overhead and
the radiation travels through one atmosphere (thickness).
2 length of a pat through the earth's atmosphere
traversed by the direct solar beam, expressed as a
multiple of the path traversed to a point at sea level with
the sun directly overhead. Air mass index is defined at
standard barometric pressure. The reference spectrum for
standard test conditions (STC) was defined to be AM1.5
Alternator - CORRECT ANSWERS ✔✔A device for
producing Alternating Current (AC) electricity. Usually
driven by a motor, but can also be driven by other
means, including water and wind power.
Ambient Temperature: - CORRECT ANSWERS ✔✔The
temperature of the surrounding area.
Ammeter - CORRECT ANSWERS ✔✔A device used for
measuring current flow at any point in an electrical
circuit.
