33. Two bulbs rated (25 W –- 220 V) and (100 W –220 V) are connected in series to a 440 V line.Which one is likely to fuse?26. In the circuit shown below, the cell has an e.m.fof 10V and internal resistance of 1 ohm. Theother resistances are shown in figure. Thepotential difference VA - VB is1) 6V2) 4V3) 2V4) -2V2) 100 W bulb1) 25 W bulb3) both bulbs34. Three 60 W, 120 V light bulbs are connectedacross a 120 V power source. If resistance ofeach bulb does not change with current then find4) noneE-10v10 A 2020 B27. The potential drop across the 32 resistor is1) 1 V2) 1.5 V3) 2 V4) 3 V28. For what value of R in circuit, current through 4 Nresistance is zero?out total power delivered to the three bulbs.1) 180 W2) 20 W30120 V3) 40 W4) 60 W35. A resistor Rị dissipates the power P whenconnected to a certain generator. If the resistorR2 is put in series with R1, the power dissipated by1) 4 N2) 1 03) 304) 5220R11) Decreases29. Find current in the branch CD of the circuit1) 15 A2) 353) 10 A4) 25 A2) Increases3) Remains the same4) Any of the above depending upon the relativevalues of R, and R236. What is the ratio of heat generated in R and 2R?3030. In the circuit shown, calculate the current through6 V battery.1) (1/4) A2) (1/8) A3) (1/2) A4) none of these31. In the circuit diagram, all the bulbs are identical.Which bulb willI,be the brightest?1) 2:12) 1:23) 4:12R4) 1:437. Consider four circuits shown in the figure below.In which circuit power dissipated is greatest1) A2) B(Neglect the internal resistance of the power10 Vsupply)?3) С4) D32. When electric bulbs of same power, but different1)ERmarked voltage are connected in series across thepower line, their brightness will be1) proportional to their marked voltage2) inversely proportional to their marked voltage3) proportional to the square of their markedvoltage4) inversely proportional to the square of theirmarked voltageSR3)RER38. Two bulbs of 500 watt and 200 watt aremanufactured to operate on 220 volt line. The

According to kirchhoff first law Algebraic sum of current at a junction is zero. According to…

In the circuit shown below, the cell has of 10V and internal resistance of 1 ohm. The other resistances are shown in figure. The potential difference Va – Vg is 1) 6V 2) 4V 3) 2V 4) -2V E-10V 40 A 20 ww 20 8

In the circuit shown below, the cell has of 10V and internal resistance of 1 ohm. The other resistances are shown in figure. The potential difference Va – Vg is 1) 6V 2) 4V 3) 2V 4) -2V E-10V 40 A 20 ww 20 8

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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