NEETprep Bank NEET Physics Electric Charges and Fields Questions Solved


Concept Videos :-

#8 | Electric Dipoles
#9 | Dipole EFI
#10 | Electric Field Superposition : 2 Electric Dipole
#11 | Electric Dipole(Short) : EFI
#12 | Electric Dipole in Uniform Electric Field : EFI
#13 | Oscillations of a dipole in Uniform Electric Field
#14 | Electric Dipole in Non uniform Electric Field
#15 | Force of interaction between two dipoles

Concept Questions :-

Electric dipole

Difficulty Level:

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  • 55%
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Concept Videos :-

#1 | Introduction & Methods of Charging

Concept Questions :-

Ways of charging

Difficulty Level:

  • 7%
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  • 13%
  • 62%
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Concept Videos :-

#2 | Basic Properties of Charge
#3 | Coulomb's Law Numericals
#4 | Dielectrical Constant
#5 | Principle of Superposition

Concept Questions :-

Coulomb's law

Difficulty Level:

  • 11%
  • 16%
  • 60%
  • 15%
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Concept Videos :-

#2 | Basic Properties of Charge
#3 | Coulomb's Law Numericals
#4 | Dielectrical Constant
#5 | Principle of Superposition

Concept Questions :-

Coulomb's law

(2)

Let the charge on one sphere=xThen, charge on other sphere=q-xForce between the spheres:F=kx(q-x)r2=k(qx-x2)r2For maximum force between the spheres:dFdx=0q-2x=0x=q2

Difficulty Level:

  • 11%
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  • 5%
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Concept Videos :-

#6 | Electric Field
#7 | Electric Field Lines & Intensity
#16 | EFI : Continous Charge Distribution
#17 | EFI : Continous Charge : Circular Arcs
#18 | EFI : Continous Charge : Axis of Circular Ring
#19 | EFI : Axis of Circular Ring Numericals
#20 | EFI : Continous Charge : Charged Disc & Planes
#21 | EFI : Continous Charge Distribution : Wires

Concept Questions :-

Electric field

Difficulty Level:

  • 7%
  • 9%
  • 20%
  • 66%
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Concept Videos :-

#2 | Basic Properties of Charge
#3 | Coulomb's Law Numericals
#4 | Dielectrical Constant
#5 | Principle of Superposition

Concept Questions :-

Coulomb's law

 

 

Initially if we see half bubble  

                      

  So, in equilibrium,

            PinA=PoutA+4πrS

If we give charge to this bubble

                      

If we consider only half bubble, net electric force is vertically downward

Since Felectricnet > FT, bubble expands

Difficulty Level:

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  • 18%
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Concept Videos :-

#8 | Electric Dipoles
#9 | Dipole EFI
#10 | Electric Field Superposition : 2 Electric Dipole
#11 | Electric Dipole(Short) : EFI
#12 | Electric Dipole in Uniform Electric Field : EFI
#13 | Oscillations of a dipole in Uniform Electric Field
#14 | Electric Dipole in Non uniform Electric Field
#15 | Force of interaction between two dipoles

Concept Questions :-

Electric dipole

(2)

U=pECosθ1-Cosθ2Uf-Ui = pE Cosθ1-Cosθ2      θ1=0°    Ui=0      Uf=pE Cos0°-Cosθ      Uf=pE1-Cosθ

Difficulty Level:

  • 48%
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  • 4%
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Concept Videos :-

#22 | Electric Flux
#23 | Gauss Theorem
#24 | Charged Infinite Wire (Gauss Theorem)
#25 | Charged Infinite Sheet (Gauss Theorem)
#26 | Charged Thin Conducting Shell (Gauss Theorem)
#27 | Solid Non Conducting Sphere : Gauss Theorem
#28 | Solid Sphere With Cavity : Gauss Theorem
#29 | Early Model of Atom (Gauss Theorem)
#30 | EFI Inside a Metal (Gauss Theorem)
#31 | Faraday Cages (Gauss Theorem)

Concept Questions :-

(3)

Using Gauss law-
Imagine a case when a point charge q is placed at the centre of a cube of side L.

 Flux passing through cube=q/0

 By symmetry, flux passing through each square =q/60

 

When the charge is placed closer to the square face i.e. at L/2, flux passing through square face will be more.
         So:- q60<<q0

Difficulty Level:

  • 39%
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Concept Videos :-

#8 | Electric Dipoles
#9 | Dipole EFI
#10 | Electric Field Superposition : 2 Electric Dipole
#11 | Electric Dipole(Short) : EFI
#12 | Electric Dipole in Uniform Electric Field : EFI
#13 | Oscillations of a dipole in Uniform Electric Field
#14 | Electric Dipole in Non uniform Electric Field
#15 | Force of interaction between two dipoles

Concept Questions :-

Electric dipole

(3)

Difficulty Level:

  • 18%
  • 35%
  • 44%
  • 4%
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Concept Videos :-

#6 | Electric Field
#7 | Electric Field Lines & Intensity
#16 | EFI : Continous Charge Distribution
#17 | EFI : Continous Charge : Circular Arcs
#18 | EFI : Continous Charge : Axis of Circular Ring
#19 | EFI : Axis of Circular Ring Numericals
#20 | EFI : Continous Charge : Charged Disc & Planes
#21 | EFI : Continous Charge Distribution : Wires

Concept Questions :-

Electric field

Difficulty Level:

  • 6%
  • 12%
  • 13%
  • 70%
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