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Senior High School: 11th and 12th Grade
Physics
Electricity - Electrical Circuits 1
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Q.1
What is the unit of current?
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Volts
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Ohms
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Amperes
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Joules
Q.2
What is the formula for potential difference?
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V = W⁄Q
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V = W⁄2Q
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V = 3W⁄2Q
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V = 5W⁄3Q
Q.3
What is the unit of charge?
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Volts
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Ohms
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Coulombs
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Amperes
Q.4
What is potential difference?
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Work done per coulomb of charge that passes between two points
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Kinetic energy per coulomb of charge that passes between two points
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Work done per coulomb of charge that passes between three points
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Work done per ampere of current that passes between two points
Q.5
What is electrical current?
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Flow of electric charge
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Flow of protons
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Flow of neutrons
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Flow of water
Q.6
What is the work done in a circuit if the voltage is 10 V, the current is 4 A and the circuit is on for 25 seconds?
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200J
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500J
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800J
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1000J
Q.7
Which formula calculates the size of the current?
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I = Q x t
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I = Q⁄t
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I = t⁄Q
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Q = I⁄t
Q.8
What can be calculated from current-potential difference graphs?
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Resistivity
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Magnetism
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Resistance
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None of the above
Q.9
What is the size of the current in a circuit if the charge, Q, is 100 C and lasts for 25 seconds?
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1A
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2A
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3A
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4A
Q.10
What does the size of the electric current depend on?
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The rate of flow of electric charge
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The rate of flow of protons
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The rate of flow of neutrons
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All of the above
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