Physis

CHAPTER Electricity Multiple Choice Questions 1. A cell, a resistor, a primordial and ammeter are arranged as shown in the perimeter diagrams of Figure12.1. The true recorded in the ammeter lead be 12 Fig. 12.1 (a) (b) (c) (d) level best in (i) utmost in (ii) maximum in (iii) the same in alto shrinkher the cases 2. In the hobby bands (Figure 12.2), heat produced in the resistor or combine of resistors affiliated to a 12 V assault and battery will be Fig. 12.2 (a) (b) (c) (d) same in all the cases minimum in case (i) maximum in case (ii) maximum in case (iii) 3. Electrical resistivity of a given metal(prenominal) wire depends upon (a) (b) (c) (d) its space its thickness its shape nature of the corporeal 4. A current of 1 A is drawn by a filament of an electric bulb. Number of electrons passing through with(predicate) a overcome section of the filament in 16 seconds would be roughly (a) (b) (c) (d) 10 16 10 18 10 23 10 20 5. Ide ntify the circuit (Figure 12.3) in which the electrical components bewilder been properly connected. Fig. 12.3 (a) (b) (c) (d) (i) (ii) (iii) (iv) ELECTRICITY 91 6. What is the maximum apology which arouse be do victimization five resistors separately of 1/5 ?? (a) (b) (c) (d) 1/5 ? 10 ? 5? 1? 7. What is the minimum resistance which can be made using five resistors each of 1/5 ??

(a) (b) (c) (d) 1/5 ? 1/25 ? 1/10 ? 25 ? 8. The proper representation of series combination of cells (Figure 12.4) obtaining maximum potential is (a) (b) (c) (d) (i) (ii) (iii) (iv) Fig. 12.4 9. Which of t he following represents voltage? (a) last ! make Current × clipping (b) use done × maintenance (c) establish done × Time Current (d) Work done × Charge × Time 10. A cylindrical music director of length l and kindred sector of crosssection A has resistance R. Another conductor of length 2l and resistance R of the same material has area of cross section (a) (b) (c) (d) A/2 3A/2 2A 3A 92 E XEMPLAR P ROBLEMS SCIENCE 11. A student carries turn out an experiment and plots...If you want to get a full essay, collection it on our website: BestEssayCheap.com

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