12th Class Physics MCQs Preparation 2022 and Onwards (Unit:  Current Electricity : Set-2 (3 MCQs)) for National MDCAT, ECAT, FPSC, PPSC, JOB Exam, Physics Lecturer, SSC, HSSC (F.Sc.), BS, MS Exams NTS, ETS, etc..



1. Three resistors of resistance R each are combined in various ways. Which of the following cannot be obtained?




... Answer is B. `\frac {2R}{4}`Ω
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2. When n resistances each of value r are connected in parallel, then the resultant resistance is x. When these n resistances are connected in series, the total resistance is




... Answer is D. n²x
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3. Two bulbs marked 200 watt - 250 volts and 100 watt - 250 volts are joined in series to 250 volts supply. The power consumed in the circuit is




... Answer is B. 67 watt
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