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Define the term potential difference.
Concept: undefined >> undefined
State and define the S.I. unit of potential difference.
Concept: undefined >> undefined
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‘The potential difference between two conductors is 1 volt.’ Explain the meaning of this statement.
Concept: undefined >> undefined
What do you understand by the term resistance?
Concept: undefined >> undefined
Explain why does a metal wire when connected to a cell offer resistance to the flow of current.
Concept: undefined >> undefined
State and define the S.I. unit of resistance.
Concept: undefined >> undefined
How are the potential difference (V), current (l) and resistance (R) related?
Concept: undefined >> undefined
'The resistance of a wire is 1 ohm'. Explain the meaning of this statement.
Concept: undefined >> undefined
How is the current flowing in a conductor changed if the resistance of conductor is doubled keeping the potential difference across it the same?
Concept: undefined >> undefined
State three factors on which the resistance of a wire depends. Explain how the resistance depends on the factors stated by you.
Concept: undefined >> undefined
How is the resistance of a wire affected if its (a) length is doubled, (b) radius is doubled?
Concept: undefined >> undefined
State whether the resistance of filament of a bulb will decrease, remain unchanged or increase when it glows.
Concept: undefined >> undefined
Name the physical quantity of which the unit is volt
Concept: undefined >> undefined
Name the physical quantity of which the unit is coulomb
Concept: undefined >> undefined
Name the physical quantity of which the unit is ohm
Concept: undefined >> undefined
Name the physical quantitiy of which the unit is ampere
Concept: undefined >> undefined
Current in a circuit flows :
Concept: undefined >> undefined
The unit of potential difference is :
Concept: undefined >> undefined
On increasing the resistance in a circuit, the current in it :
Concept: undefined >> undefined
