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What is a primary cell? Name two such cells.
(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.
What do you understand by the term resistance?
Name the physical quantity of which the unit is ohm
Name the physical quantitiy of which the unit is ampere
How is potential difference related to work done and quantity of charge?
Select the correct option:
In a metallic conductor, electric current is thought to be due to movement of:
State three factors on which the resistance of a wire depends. Explain, how does the resistance depend on the factors stated by you.
