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11th July 2015, 02:24 PM
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Join Date: Apr 2013
Re: WBJEE Sample Papers Download

Here I am providing the list of few questions of West Bengal Joint Entrance Examinations (WBJEE) sample question paper which you are looking for .

1. One Kg of copper is drawn into a wire of 1mm diameter and a wire of 2 mm diameter. The resistance of the two wires will be in the
ratio
(A) 2 : 1 (B) 1 : 2 (C) 16 : 1 (D) 4 : 1

2. An electrical cable having a resistance of 0.2 Ω delivers 10kw at 200V D.C. to a factory. What is the efficiency of transmission?
(A) 65% (B) 75% (C) 85% (D) 95%

3. A wire of resistance 5 Ω is drawn out so that its new length is 3 times its original length.What is the reistance of the new wire?
(A) 45 Ω (B) 15 Ω (C) 5/3 Ω (D) 5 Ω

4.Two identical cells each of emf E and internal resistance r are connected in parallel with an external resistance R. To get maximum
power developed across R, the value of R is
(A) R = r/2 (B) R = r (C) R = r/3 (D) R = 2r


West Bengal Joint Entrance Examinations sample question paper







For the question paper , here is the attachment


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