If W is the work done in moving a charge q from infinity to a point, then the potential at the point is
v = w/q
v = q/w
v = qw
v= Eqw
SI Unit of electric potential is
Watt
Volt
Coulomb / joules
Newton/ Coulomb
Which of the following is a vector quantity?
Electric potential
Electric Intensity
Capacitance
Dielectric constant
Which of the following will not alter the capacitance of a parallel plate capacitor ?
Change is the area of the plates
Change is the distance between the plates
Change is the dielectric medium
Change is the charging potential
When two capacitors of capacitance C1 and C2 are connected in series their effective capacitance will be
C1+C2
C1C2/C1+C2
C1+C2/C1C2
C1 / C2
When two capacitors of capacitance C1 and C2 are connected in parallel their effective capacity will be
C1 + C2
C1 C2 /C1 + C2
C1 + C2 / C1 C2
2 ( C1 + C2 )
The supply of an additional charge to a charged capacitor will
Reduce its potential
Increase its potential
Reduce its capacity
Reduce the permittivity of the medium.
A copper slab of thickness d/2 is introduced between the plates of a parallel plate capacitor of plate separation d. If the capacitance of the capacitor without copper slab is c and with copper slab is c', then c '/c is
√2
2
1
1/√2
The dimensions of capacitance are
M-1 L-2 T2 I2
M-1 L-1 T2 I2
M-1 L-2 T3 I2
M-1 L-2 T4 I2
When a parallel plate capacitor is kept connected to a battery and the distance between the plates is increased.
Its capacity remains constant
Its charge remains constant
Its potential remains constant
Its energy remains constant
