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A network contains linear resistors and ideal voltage source S. If all the resistors are made twice their initial value, then voltage across each resistor is __________(a) Halved(b) Doubled(c) Increases by 2 times(d) Remains sameThis question was posed to me in an interview for internship.My question comes from Advanced Problems on Two Port Network in chapter Two-Port Networks of Network Theory

Answer»

The correct answer is (d) Remains same

To explain: The voltage/resistance RATIO is a constant (say K). If K is DOUBLED then, electric current will become half. So voltage across each resistor remains same as was initially.



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