186) Two incandescent light bulbs of 40W and 60W rating are connected in series across a mains then A. the 40 W bulb glows brighter B. the 60 W bulb glows brighter C. the both bulbs glow same brighter D. none of these [GATE 2004] A B C D 187) A certain network consists of large number of ideal linear resistances, one of which is designated as R and two constant ideal source. The power consumed by R is P1 when only the first source is active and P2 when only second source is active. In both sources are active simultaneously then the power consumed by R is A. vP1 ± vP2 B. (vP1 ± vP2)2 C. P1 ± P2 D. (P1 ± P2)2 [UPSC IES Elec Engg - I 2003] A B C D 188) The incandescent bulbs rated respectively as P1 and P2 for operation at a specified main voltage are connected in series across the mains as shown in the figure. Then the total power supplied by the mains to the two bulbs A. P1.P2 / (P1 + P2) B. v(P12 + P22) C. P1 + P2 D. v(P1XP2) [UPSC IES Elec Engg - I 2003] A B C D 189) A 100 W light bulb burns on an average of 10 hours a day for one week. The weekly consumption of energy will be A. 0.7 units B. 7 units C. 70 units D. 700 units [Delhi University 1984] A B C D 190) The elements which are not capable of delivering energy by its own are known as A. passive elements. B. unilateral elements. C. bilateral elements. D. active elements. [BTE MP Elect Circuits, 1996] A B C D 191) Consider the circuit: Which of the following statement is correct ? A. passive and linear B. active and linear C. passive and non-linear D. active and non-linear [UPSC IES Elec Engg - I 2004] A B C D 192) A practical current source is represented by A. a resistance parallel with an ideal current source B. a resistance series with an ideal current source C. a resistance parallel with an ideal voltage source D. none of the above [GATE 1997] A B C D 193) In the circuit given below, what is the voltage across the current source Is A. 0 V B. 2 V C. 3 V D. 6 V [UPSC IES Elect Engg-1,2005] A B C D 194) In the circuit given, I = 1 A for Is = 0. What is the value of I for Is = 2 A ? A. 4 A B. 3 A C. 2 A D. 1 A [UPSC IES Elect Engg-1,2005] A B C D
Posted on: Thu, 11 Jul 2013 05:43:20 +0000
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