A variable resistor R is connected across a cell of emf E and internal
resistance r.
a) Draw the circuit diagram.
b) Plot the graph showing variation of potential drop across R as
function of R.
c) At what value of R current in circuit will be maximum.
Answers
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1
resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses.
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Explanation:
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