1 )
To decrease the capacitance , we put capacitors in . . . . . . . . . . . . . ,
A ) series , B ) parallel ,
C ) both will show same capacitance , D
) None of these ,
Correct
Answer : - A ) series ,
2 )
If we increase the distance between two plates. of capacitor , the capacitance
will : -
A ) increase , B ) decrease ,
C ) remain same , D ) None of these ,
Correct
Answer : - B ) decrease ,
Because C = k A E / d .
As by formula , capacitance is inversely related to distance . So ,
while increasing distance , capacitance will decrease .
3 )
A capacitor is charged with battery and then I is disconnected . A slab of
dielectric is now inserted between plates : -
A ) then potential difference between the plates
decreases ,
B ) stored energy
decreases ,
C ) charge remains
unchanged ,
D ) All of these .
Correct
Answer : - D ) All of these .
4 ) When
dielectric is placed between the plates , the capacitance of capacitor will . .
. . . . . . . . .
A ) increases , B
) decrease ,
C ) remain same , D
) None of these ,
Correct
Answer : - A ) increases ,
5 )
In a charged capacitor , the energy is stored in the form of . . . . . . . . .
. . between the plates .
A ) magnetic field , B
) electric field ,
C ) both of these , D
) None of these ,
Correct
Answer : - B ) electric field ,
6 )
Capacitance of parallel plates capacitor depends on separation between the
plates .
7 )
If the distance between the plates of parallel plate capacitor of capacitance
10 u f is double , then new capacitance will be : -
A ) 5 u f , B
) 10 u f ,
C ) 15 u f , D
) None of these ,
Correct
Answer : - A ) 5 u f ,
C = A E˳ / d ,
d' = 2 d ,
So , C' = C / 2 = 10 u f / 2 ,
C' = 5 u f , Answer .
Now go to online quiz section and Physics Quiz 13 is uploaded related to these mcqs , so check your preparation by this link : -
