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SSC Previous Year Question Papers with Solutions - (3)

 

Question: In the following question, select the related number from the given alternatives. 

42 : 105 : : 38 : ?

Options: 

1) 111 

2) 135 

3) 95 

4) 83 

Answer: 95

(42*3) - (42*0.5) = 105
(38*3) - (38*0.5) = 95

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  Question:  Determine the separation between the plates (in mm) of a parallel plate capacitor placed in air, when the area of the plates is 0.002 sq. meter, the voltage of the battery connected to this parallel plate capacitor is 4 V and the charge stored on the plates is 16 pC. Answer: We know that C = Q/V or, C=(16*10^(-12)) / 4 or, C = 4*10^(-12) Capacitance between two parallel plates is calculated as, C = €A/d Where, € = 8.854*10^(-12) A = Area of plate d = Distance between plates Now, d = €A/C or, d = (8.854*10^(-12)*0.002) / (4*10^(-12)) or, d = 4.4 mm Next>> <<Previous Go back