NEW
Font size
WorksheetsElectrostatics
Total questions: 15
Worksheet time: 5mins
If voltage applied on a capacitor is increased from V to 2 V
Q remains same, C doubled
Q is doubled, C doubled
C remains same, Q doubled
A parallel plate capacitor stores a charge Q at a voltage V. suppose the area of the parallel plate capacitor and the distance between the plates are each doubled then which is the quantity that will change?
Capacitance
Energy density
Charge
Gauss's law valid for
Any closed surface
Regular closed surface
Open surface
The maximum electric field that a dielectric medium can withstand without breakdown is called
Permittivity
Dielectric constant
Dielectric strength
If in a parallel plate capacitor, which is connected to a battery we fill dielectrics in whole space of its plates then which of the following increases?
Q & V
V & E
Q & C
Van De graaff generator is used to
Store electrical energy
Build up high voltage
Decelerate charged particle
Assertion: dielectric polarization means formation of positive and negative charges inside the dielectric
Reason: free electrons are formed in this process
Assertion is correct and reason is a correct explanation of assertion
Assertion is correct but reason is not a correct explanation of assertion
Assertion is correct, reason is incorrect
Which of the following has permanent dipole moment
O2
N2
H2O
1 pF is equal to
10^-6 F
10^-12 F
10^-15 F
A non polar dielectric is placed in an electric field its induced dipole moment
Acts along the direction of E
Acts opposite to the direction of E
Zero
n capacitors each of capacitance C are connected in series the effective capacitance is
n/C
C/n
nC
The principle used in lightning conductor
Corona discharge
Electromagnetic induction
Mutual induction
For which of the following medium the value of relative permittivity is one
Mica
Glass
Air
When a dielectric slab is introduced between the plates of a charged parallel plate capacitor, its
Potential increases
Electric field decreases
Capacitance decreases
Effective capacitance of two capacitors having equal capacitance when connected in series is 12 pF. Find the capacitance of each capacitor
6 pF
3 pF
24 pF
