Physics
You are given three resistors of magnitude 3 Ω each. You can join them either in a series or in a parallel combination. How will you arrange them so that the equivalent resistance would become:
(a) maximum
(b) minimum
(Your answer must be accompanied by proper mathematical calculations)
Current Electricity
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Answer
Given,
Number of resistors = 3
Resistance of each resistor, R = 3 Ω
(a) To get maximum equivalent resistance: Connect all in series combination, resistances simply add:
This is the maximum possible equivalent resistance using all three.
(b) To get minimum equivalent resistance: connect all in parallel combination.
By the reciprocal formula:
This gives the minimum possible equivalent resistance.
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