Please select a subject first
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State the two kinds of cell. Give one example of each.
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State three differences between the primary and secondary cells.
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How much is the charge on an electron?
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n electrons flow through a cross section of a conductor in time t. If charge on an electron is e, then write an expression for the current in the conductor.
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Name the instrument used to control the current in an electric circuit.
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In the electric circuit shown in Figure, label the parts A, B, C, D, E, and F. State the function of each part. Show in the diagram the direction of flow of current.
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What is the function of a key (or switch) in an electric circuit?
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Write symbol and state function of following component in an electric circuit : key
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Write symbol and state function of following component in an electric circuit :
cell
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Write symbol and state function of following component in an electric circuit :
rheostat
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Write symbol and state function of following component in an electric circuit :
ammeter
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Write symbol and state function of following component in an electric circuit :
voltmeter
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(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.
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A charge 0.5 C passes through a cross section of a conductor in 5 s . Find the current .
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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 .
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Explain the concept of electric potential difference in terms of work done in transferring the charge.
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