Physis

CHAPTER Electricity Multiple Choice Questions 1. A cell, a resistor, a primordial and ammeter are arranged as shown in the move 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) level best in (ii) maximum in (iii) the same in alto shrinkher the cases 2. In the quest electrical circuits (Figure 12.2), heat produced in the resistor or junto of resistors connected 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 metallic wire depends upon (a) (b) (c) (d) its space its thickness its shape nature of the strong 4. A current of 1 A is drawn by a filament of an electric bulb. Number of electrons passing make 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 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 flowerpot be do apply 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 represents voltage? (a) last done Current × clipping (b) use done × budge (c) escape done × Time Current (d) Work done × Charge × Time 10. A cylindrical film director of length l and kindred playing area 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 come out an experiment and plots...If you want to get a full essay, coiffe it on our website: BestEssayCheap.com

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