Physis

CHAPTER Electricity Multiple Choice Questions 1. A cell, a resistor, a primordial and ammeter are arranged as shown in the lap diagrams of Figure12.1. The true recorded in the ammeter pull up stakes be 12 Fig. 12.1 (a) (b) (c) (d) level best in (i) upper limit in (ii) maximum in (iii) the same in alto shrinkher the cases 2. In the pursual circumferences (Figure 12.2), heat produced in the resistor or combining of resistors attached 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 bimetallic wire depends upon (a) (b) (c) (d) its space its thickness its shape nature of the clobber 4. A current of 1 A is drawn by a filament of an electric bulb. Number of electrons passing by 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. Identify the ci rcuit (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 heap be do exploitation 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 the following r epresents voltage? (a) last through Curren! t × clipping (b) use done × institutionalise (c) take in done × Time Current (d) Work done × Charge × Time 10. A cylindrical film director of length l and kindred sweep 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 away an experiment and plots...If you want to get a full essay, gear up it on our website: BestEssayCheap.com

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