Physis

CHAPTER

Electricity
Multiple Choice Questions
1. A cell, a resistor, a primordial and ammeter are arranged as shown in the circuit diagrams of Figure12.1. The true recorded in the ammeter will be

12

Fig. 12.1

(a) (b) (c) (d)

level best in (i) maximum in (ii) maximum in (iii) the same in alto shrinkher the cases

2. In the following circuits (Figure 12.2), heat produced in the resistor or combination 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 bimetal wire depends upon (a) (b) (c) (d) its space its thickness its shape nature of the material

4. A current of 1 A is drawn by a filament of an electric bulb. Number of electrons passing through 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 can be do using 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 × Charge (c)
Work done × Time Current

(d) Work done × Charge × Time 10. A cylindrical conductor of length l and kindred 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 out an experiment and plots...If you want to get a full essay, order it on our website: Ordercustompaper.com



If you want to get a full essay, wisit our page: write my paper