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What is the function of a key (or switch) in an electric circuit?
Concept: undefined >> undefined
Write symbol and state function of following component in an electric circuit : key
Concept: undefined >> undefined
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Write symbol and state function of following component in an electric circuit :
cell
Concept: undefined >> undefined
Write symbol and state function of following component in an electric circuit :
rheostat
Concept: undefined >> undefined
Write symbol and state function of following component in an electric circuit :
ammeter
Concept: undefined >> undefined
Write symbol and state function of following component in an electric circuit :
voltmeter
Concept: undefined >> undefined
(a) Complete the circuit given in Fig. by inserting between the terminals A and C. an ammeter.
(b) In the diagram, mark the polarity at the terminals of ammeter and indicate clearly the direction of flow of current in the circuit when the circuit is complete.
(c) Name and state the purpose of Rh in the circuit.
Concept: undefined >> undefined
A charge 0.5 C passes through a cross section of a conductor in 5 s . Find the current .
Concept: undefined >> undefined
When starter motor of a car is switched on for 0.8 s . a charge 24 C passes through the coil of the motor . Calculate the current in the coil .
Concept: undefined >> undefined
Explain the concept of electric potential difference in terms of work done in transferring the charge.
Concept: undefined >> undefined
Define the term potential difference.
Concept: undefined >> undefined
State and define the S.I. unit of potential difference.
Concept: undefined >> undefined
‘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
