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Truptimayee Nayak
Subject: Physics
, asked on 12/7/16
find the relation between farad and ab-farad
Answer
1
Animesh Srivastava
Subject: Physics
, asked on 17/9/16
The electrostatic potential inside a charged spherical ball is given byϕ = aR
2
+ b where a and b are constants ,then the charge density inside the ball is -
(A) -24πℇo Ra
(B) -6πaℇ
o
R
(C) -24πℇ
o
a
(D) -6aℇ
o
Answer
1
Animesh Srivastava
Subject: Physics
, asked on 5/9/16
A charge +q is fixed at each of the pts. x = x
o
, x = 3x
o
, x = 5x
o
... upto infinity on the x axis and a charge -q is fixed at each of the pts. x = 2x
o
, x = 4x
o
, x = 6x
o
... upto infinity.Here x
o
is a positive constant.Find the potential at the origin due to the above system of charges. (IIT-98)
Answer
1
Aisha Shoeb
Subject: Physics
, asked on 30/8/16
find the ratio of potential differences that must be applied across the parallel and series combination of two capacitors C1 and C2with their capacitance in the ratio 1:2 so that the energy stored in the two cases becomes the sane
plot the graph between energy and capacitance
Answer
1
Vortega
Subject: Physics
, asked on 26/8/16
Is the electric field due to a charge configuration with total charge zero necessarily?
Justify?
Answer
1
Aisha Shoeb
Subject: Physics
, asked on 24/8/16
the electric field due to a charge configuration is independent of distance from the charge . identify the charge configuration
Answer
1
Vortega
Subject: Physics
, asked on 10/8/16
By convection, a glass rod rubbed with silk was assumed to hold positive charge. If we
now call it negative charge, will the laws of electrostatics change? Explain
Answer
1
Hardee Shah
Subject: Physics
, asked on 10/7/16
Two equal charges q of opposite sign separated by distance 2a constitute an electric dipole of dipole moment p.If p is a point at a distance r from the centre of the dipole and the line joining centre of the dipole to this point makes an angle theta with the axis of the dipole, then the potential at P is given by (r>>2a) where p=2qa
Answer
1
Hardee Shah
Subject: Physics
, asked on 7/7/16
(C) Q
1
=Q
2
+Q
3
and V= V
1
+V
2. (D)
Q
2
= Q
3
and V
2
= V
3
Answer
1
Hardee Shah
Subject: Physics
, asked on 7/7/16
Three capacitors C1, C2and C3 are joined to a battery. With symbols having their usual meaning correct conditions will be (a). Q
1=
Q
2
=Q
3 and
V
1
=V
2
=V
3
+V (b) Q
1
=Q
2+
Q
3 and
V= V
1
+V
2
+V
3
Answer
2
Japleen Kaur
Subject: Physics
, asked on 7/7/16
How is the electric field outside the capacitor zero. please explain..
how we get
???
Answer
2
Akanksha Srikanth
Subject: Physics
, asked on 20/6/16
Draw graph showing variation of electric field with distance for a uniformly charged metallic sphere.
Answer
1
Ramandeep Kaur
Subject: Physics
, asked on 9/6/16
Two identical metallic spheres A and B having charges +4Q and -10Q are kept a certain distance apart .A third identical uncharged sphere C is first placed in contact with sphere A and then with sphere B.Sphere A and B are then brought in contact and then separated .Find the charges on spheres A and B
Answer
1
Sana Khan
Subject: Physics
, asked on 7/6/16
a capacitor of 6 microfarad capacitance is charged upto 100V . it is touched and then removed with another uncharged capacitor of 14 microfarad , ythen ratio of charges on both and potential at 6 microfarad capacitor is
Answer
1
Kaushika
Subject: Physics
, asked on 5/6/16
A small metal sphere of radius a carries a charge Q. It is surrounded out to radius b by linear dielectric material of permittivityepsilon. the potential at the centre of the sphere is?
Answer
1
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Next
What are you looking for?
(A) -24πℇo Ra
(B) -6πaℇoR
(C) -24πℇoa
(D) -6aℇo
plot the graph between energy and capacitance
Justify?
now call it negative charge, will the laws of electrostatics change? Explain
how we get
???