ThePrismSolutions

ThePrismSolutions

DAILY PRACTICE PAPER(9Th June 2018)

Q. Two points P and Q are maintained at the potentials 10 V and -4 V respectively. The work done in moving 100 electrons from P to Q is :

(a) -9.60 X 10-17J      (b) 9.60 X 10-17J

(c) -2.24 X 10-16J      (d) 2.24 X 10-16J

Q. Capacitance (in F) of a spherical conductor of radius 1 m is :

(a)  1.1 X 10-10      (b) 10-6

(c)  9 X 10-9      (d) 10-3

Q. A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capcitor:

(a)  decreases        (b)  remains unchanged

(c)  becomes infinite    (d) increases

Q. A parallel plate capacitor is made by stacking n equally spaced plates connected alternatively. If the capacitance between any two adjacent plates is C, then the resultant capacitance is :

(a) (n - a)C       
(b) (n + 1)C         
(c) C       
(d) nC

Q. If there are n capacitors in parallel connected to V volt source, then the energy stored is equal to :

(a) CV      (b) 1/2 nCV2    

(c) CV2      (d) 1⁄2n CV2



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