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Electricity
Nitinjeet
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The obstruction offered by a material of a conductor to the passage of electric current is known as
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Resistance
Conductance
none of the above
A voltmeter is used to find potential difference in any electrical circuit which of the statement given below is true:
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voltmeter is a high resistance instrument and is connected in series circuit.
voltmeter is a low resistance instrument and is connected in series circuit.
voltmeter is a high resistance instrument and is connected in parallel circuit.
Electric potential difference causes
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electrons to move from negative terminal to positive terminal
protons to move negative terminal to positive terminal
electrons to move positive terminal to negative terminal
Among which of the following resistance does not depend on:
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length of conductor
density
area of cross section
The rate of flow of electric charge is
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potential difference
electric current
resistance
What is the electric potential difference between two points measured in?
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amperes
joules
volts
There is a repulsive force between two charged object when
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charges are unlike
charges are like
they have same no. of electrons
The rheostat is used in the circuit to:
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increase the magnitude of current only.
decrease the magnitude of current only.
increase or decrease the magnitude of current only.
Which of the following laboratory apparatus is not used during the verification of ohms law
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Galvanometer
Voltmeter
Rheostate
When there is an equal amount of positive and negative charges on an object, the object is
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Positively charged
Negatively charged
Neutral
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