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Deepika Walia
Subject: Physics
, asked on 14/5/18
Solve this:
Q.51. If an electric field is given by
10
i
^
+
3
j
^
+
4
k
^
, calculate the electric flux through a surface of area 10 units lying in yz plane
(1) 100 units
(2) 10 units
(3) 30 units
(4) 40 units
Answer
1
Aaradhya Kondawar
Subject: Physics
, asked on 12/5/18
Solve this:
Answer
2
Sunidhi Sarmah
Subject: Physics
, asked on 12/5/18
Please answer this
15.
A proton and an alpha particle are projected in the dilute rection of an electric field of intensity E. Their accelerations are in the ratio of
a) 1:1 b) 1:4 c) 1:2 d) 2:1
Answer
2
Aaradhya Kondawar
Subject: Physics
, asked on 12/5/18
If an electric field is given by
10
i
^
+
3
j
^
+
4
k
^
, calculate the electric flux through a surface of area 10 units lying in
yz
plane.
(1) 100 units (2) 10 units (3) 30 units (4) 40 units
Answer
1
Nura Mohammad
Subject: Physics
, asked on 12/5/18
Why under free fall u=0?
Answer
1
Vanshika Sharma
Subject: Physics
, asked on 11/5/18
Solve:
62. A thin infinite non-conducting plate is in the XOY plane. It has a circular hole of radius R with center at the origin. The plate has a uniform surface charge density
σ
on its upper surface. Find the electric field at point (0, 0, z).
A
σ
z
2
ε
0
R
2
+
z
2
B
σ
R
2
ε
0
R
2
+
z
2
C
σ
z
ε
0
R
2
+
z
2
D
σ
R
ε
0
R
2
+
z
2
Answer
1
Pranav Shorey
Subject: Physics
, asked on 9/5/18
Q
10
.
A
b
a
l
l
o
o
n
c
o
n
t
a
i
n
s
500
m
3
o
f
H
e
a
t
27
°
C
a
n
d
1
a
t
m
o
s
p
h
e
r
i
c
p
r
e
s
s
u
r
e
.
T
h
e
v
o
l
u
m
e
o
f
H
e
a
t
-
3
°
C
a
n
d
0
.
5
a
t
m
o
s
p
h
e
r
i
c
p
r
e
s
s
u
r
e
w
i
l
l
b
e
a
700
m
3
b
900
m
3
c
1000
m
3
d
500
m
3
Answer
1
Rohit Kumar
Subject: Physics
, asked on 9/5/18
in simple sir explain charge conserved and quantisation of charge
Answer
1
Aparna Sahu
Subject: Physics
, asked on 8/5/18
Solve this.
Q28. A spherometer has 250 equal divisions marked along the periphery of its disc; and the full rotation of the disc advances on the main scale by 0.0625 cm. The least count of the system is
(a) 2.5 × 10
–2
cm (b) 2.5 × 10
–3
cm
(c) 2.5 × 10
–4
cm (d) None of these
Answer
1
Divya Mahesh
Subject: Physics
, asked on 6/5/18
Solve this -
17. Charges Q, 2Q and 4Q are uniformly distributed in three dielectric solid spheres 1, 2 and 3 of radii R / 2, R and 2 R respectively, as shown in the figure. If magnitudes of the electric fields at point P at a distance R from the centre of spheres 1, 2 and 3 are E
1
, E
2
and E
3
respectively then
a
E
1
>
E
2
>
E
3
b
E
3
>
E
1
>
E
2
c
E
2
>
E
1
>
E
3
d
E
3
>
E
2
>
E
1
Answer
1
Sudhanshu Singh
Subject: Physics
, asked on 6/5/18
Solve this
Q.130. A block of mass m is placed on a smooth inclined wedge ABC of inclination
θ
as shown in the figure. The wedge is given an acceleration 'a' towards the right. The relation between a and
θ
for the block to remain stationary on the wedge is
(1)
a
=
g
sin
θ
(2) a = g cos
θ
(3)
a
=
g
cos
e
c
θ
(4) a = g tan
θ
Answer
2
Pragnil Savjani
Subject: Physics
, asked on 6/5/18
A
n
e
l
e
c
t
r
i
c
d
i
p
o
l
e
w
i
t
h
d
i
p
o
l
e
m
o
m
e
n
t
p
a
n
d
e
x
t
e
r
n
a
l
m
o
m
e
n
t
o
f
i
n
e
r
t
i
a
I
i
s
r
e
l
e
a
s
e
d
f
r
o
m
r
e
s
t
i
n
a
u
n
i
f
o
r
m
e
x
t
e
r
n
a
l
e
l
e
c
t
r
i
c
f
i
e
l
d
E
w
i
t
h
a
n
g
l
e
b
e
t
w
e
e
n
p
→
a
n
d
E
→
e
q
u
a
l
t
o
π
2
.
T
h
e
a
n
g
u
l
a
r
v
e
l
o
c
i
t
y
o
f
t
h
e
d
i
p
o
l
e
w
h
e
n
p
→
a
n
d
E
→
b
e
c
o
m
e
p
a
r
a
l
l
e
l
t
o
e
a
c
h
o
t
h
e
r
i
s
Answer
1
Pragnil Savjani
Subject: Physics
, asked on 6/5/18
an electric dipole when dipole moment of 2 ? 10^-6 [i + 2j] is placed in a uniform electric field 2 ? 10^3 i the torque experienced by the dipole will be
Answer
2
Shivam
Subject: Physics
, asked on 5/5/18
please solve 14th question
Q.14. The charges shown in fig. are stationary. Find the magnitude of the force on 4
μ
C charge due to the other two.
Ans. 3.9 N
Answer
1
Shivam
Subject: Physics
, asked on 5/5/18
please solve this question
Q.13. Calculate the resultant force on the 10 microcoulomb charge in fig.
Ans. 18.97 N
Answer
1
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What are you looking for?
Q.51. If an electric field is given by , calculate the electric flux through a surface of area 10 units lying in yz plane
(1) 100 units
(2) 10 units
(3) 30 units
(4) 40 units
15. A proton and an alpha particle are projected in the dilute rection of an electric field of intensity E. Their accelerations are in the ratio of
a) 1:1 b) 1:4 c) 1:2 d) 2:1
(1) 100 units (2) 10 units (3) 30 units (4) 40 units
62. A thin infinite non-conducting plate is in the XOY plane. It has a circular hole of radius R with center at the origin. The plate has a uniform surface charge density on its upper surface. Find the electric field at point (0, 0, z).
Q28. A spherometer has 250 equal divisions marked along the periphery of its disc; and the full rotation of the disc advances on the main scale by 0.0625 cm. The least count of the system is
(a) 2.5 × 10–2 cm (b) 2.5 × 10–3 cm
(c) 2.5 × 10–4 cm (d) None of these
17. Charges Q, 2Q and 4Q are uniformly distributed in three dielectric solid spheres 1, 2 and 3 of radii R / 2, R and 2 R respectively, as shown in the figure. If magnitudes of the electric fields at point P at a distance R from the centre of spheres 1, 2 and 3 are E1, E2 and E3 respectively then
Q.130. A block of mass m is placed on a smooth inclined wedge ABC of inclination as shown in the figure. The wedge is given an acceleration 'a' towards the right. The relation between a and for the block to remain stationary on the wedge is
(1)
(2) a = g cos
(3)
(4) a = g tan
Q.14. The charges shown in fig. are stationary. Find the magnitude of the force on 4 C charge due to the other two.
Ans. 3.9 N
Q.13. Calculate the resultant force on the 10 microcoulomb charge in fig.
Ans. 18.97 N