B)Find an expression for equivalent resistance when two resistance are connected in series combination
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It is observed that the total current I, is equal to the sum of the separate currents through each branch of the combination. Thus, we may conclude that the reciprocal of the equivalent resistance of a group of resistances joined in parallel is equal to the sum of the reciprocals of the individuals resistances.
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That is equal to R1 + R2. If three or more unequal (or equal) resistors are connected in series then the equivalent resistance is: R1 + R2 + R3 +…, etc.
Explanation:
Resistors are said to be connected in series when they are daisy chained together in a single line resulting in a common current flowing through them
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