VIII. Long answer questions.
1. With the help of a circuit diagram derive
the formula for the resultant resistance of
three resistances connected: a) in series
and b) in parallel
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Explanation:
Answer. (a) Fig. shows three resistances R1, R2 and R3 Connected in series with a battery of let the p.d. across R1, R2 and R3 is V1, V2 and V3 respectively. Let the equivalent resistance be R and current flowing through whole circuit is 1.
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