CEPA:L1QUESTIONSWITHCORRECT ANSWERS 2 h h h h h h
026
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BASICCIRCUITRY - CORRECT ANSWER-• POTENTIALFDIFFERENCE OR VOLTAGE
h h h h h h h h
• ELECTRIC CURRENT h
• RESISTANCE
• CAPACITANCE
volatage/potential difference - CORRECT ANSWER - h h h h h
Is the pressure from an electrical circuit's power source that pushes charged electrons (current) through a conducting l
h h h h h h h h h h h h h h h h h
oop, enabling them to do work such as illuminating a light..
h h h h h h h h h h
Volts - CORRECT ANSWER -Voltage = pressure, and it is measured in
h h h h h h h h h h h h
Joules/Coulomb (J/C) h
1V=1J/C - CORRECT ANSWER -SI unit of voltage
h h h h h h h
Alessandro Volta (1745-1827) - CORRECT ANSWER - h h h h h h
The term voltage recognizes Italian physicist
h h h h h h
An Italian physicist,invented the first electric battery.
h h h h h h
electric current - CORRECT ANSWER -The rate of flow of electrons in a conductor
h h h h h h h h h h h h h
Ampere (A) - CORRECT ANSWER -SI unit of current
h h h h h h h h
André-MarieAmpère (1775-1836) - CORRECT ANSWER- h h h h h h
Ampere (A), named after
h h (1775 - h h h h
1836), Frenchmathematician and physicist, considered the father of electromagnetism
h h h h h h h h h
, 1A = 1Coulomb/second= 1.6 x 10^19 electrons - CORRECT ANSWER -1 A =
h h h h h h h h h h h h h c/s = h h electrons
Resistance - CORRECT ANSWER -• Also known as ohmic resistance or electrical resistance
h h h h h h h h h h h h
• Measure of the opposition to current flow in an electrical circuit
h h h h h h h h h h
Ohms (Ω) - CORRECT ANSWER -Unit of resistance
h h h h h h h
T - CORRECT ANSWER -The larger resistance, the greater the barrier against the flow of current.
h h h h h h h h h h h h h h h
T or f
h h
‣ Directly proportional to the length of the material
h h h h h h h
‣ Inversely proportional to the cross-sectional area of the material
h h h h h h h h
‣ Depends on the nature of the material h h h h h h
‣ It depends on the temperature - CORRECT ANSWER-
h h h h h h h h
The resistance of conducting material is found to be
h h h h h h h h h
Capacitance - CORRECT ANSWER - h h h h
Ability of a component or circuit to collect and store energy in the form of an electrical charge.
h h h h h h h h h h h h h h h h h
Capacitor- CORRECT ANSWER -are energy-storing devices available in many sizes andshapes.
h h h h h h h h h h h h
T - CORRECT ANSWER -
h h h h
Capacitor consist of two plates of conducting material (usually a thin metal) sandwiched between an insul ator made
h h h h h h h h h h h h h h h h h h
of ceramic, film, glass or other materials, even air.
h h h h h h h h
T or f
h h
Farad (F) h
026
Save
BASICCIRCUITRY - CORRECT ANSWER-• POTENTIALFDIFFERENCE OR VOLTAGE
h h h h h h h h
• ELECTRIC CURRENT h
• RESISTANCE
• CAPACITANCE
volatage/potential difference - CORRECT ANSWER - h h h h h
Is the pressure from an electrical circuit's power source that pushes charged electrons (current) through a conducting l
h h h h h h h h h h h h h h h h h
oop, enabling them to do work such as illuminating a light..
h h h h h h h h h h
Volts - CORRECT ANSWER -Voltage = pressure, and it is measured in
h h h h h h h h h h h h
Joules/Coulomb (J/C) h
1V=1J/C - CORRECT ANSWER -SI unit of voltage
h h h h h h h
Alessandro Volta (1745-1827) - CORRECT ANSWER - h h h h h h
The term voltage recognizes Italian physicist
h h h h h h
An Italian physicist,invented the first electric battery.
h h h h h h
electric current - CORRECT ANSWER -The rate of flow of electrons in a conductor
h h h h h h h h h h h h h
Ampere (A) - CORRECT ANSWER -SI unit of current
h h h h h h h h
André-MarieAmpère (1775-1836) - CORRECT ANSWER- h h h h h h
Ampere (A), named after
h h (1775 - h h h h
1836), Frenchmathematician and physicist, considered the father of electromagnetism
h h h h h h h h h
, 1A = 1Coulomb/second= 1.6 x 10^19 electrons - CORRECT ANSWER -1 A =
h h h h h h h h h h h h h c/s = h h electrons
Resistance - CORRECT ANSWER -• Also known as ohmic resistance or electrical resistance
h h h h h h h h h h h h
• Measure of the opposition to current flow in an electrical circuit
h h h h h h h h h h
Ohms (Ω) - CORRECT ANSWER -Unit of resistance
h h h h h h h
T - CORRECT ANSWER -The larger resistance, the greater the barrier against the flow of current.
h h h h h h h h h h h h h h h
T or f
h h
‣ Directly proportional to the length of the material
h h h h h h h
‣ Inversely proportional to the cross-sectional area of the material
h h h h h h h h
‣ Depends on the nature of the material h h h h h h
‣ It depends on the temperature - CORRECT ANSWER-
h h h h h h h h
The resistance of conducting material is found to be
h h h h h h h h h
Capacitance - CORRECT ANSWER - h h h h
Ability of a component or circuit to collect and store energy in the form of an electrical charge.
h h h h h h h h h h h h h h h h h
Capacitor- CORRECT ANSWER -are energy-storing devices available in many sizes andshapes.
h h h h h h h h h h h h
T - CORRECT ANSWER -
h h h h
Capacitor consist of two plates of conducting material (usually a thin metal) sandwiched between an insul ator made
h h h h h h h h h h h h h h h h h h
of ceramic, film, glass or other materials, even air.
h h h h h h h h
T or f
h h
Farad (F) h
