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Rohit
Subject: Physics
, asked on 23/1/18
17.
A galvanometer of resistance G is converted into a voltmeter to measure upto V volts by connecting a resistance R
1
in series with the coil. If a resistance R
2
is connected in series with it , then it can measure up to V/2 volts. Find the resistance , in terms or R
1
and R
2
, required to be connected to convert it into a voltmeter that can read up to 2V. Also find the resistance G of the galvanometer in terms of R
1
and R
2
.
Answer
1
Shri Ganesh
Subject: Physics
, asked on 22/1/18
Q- How much distance Should a person travel inside the Earth from the surface of the Earth, So that its
weight becomes one ninth of its value on the surface of the Earth?
A
)
R
B
)
R
9
C
)
8
R
9
D
)
9
R
8
Answer
2
Shubhrajyoti Ghosh
Subject: Physics
, asked on 21/1/18
Q A charge q is revolving along a circular path of radius r with velocity v . Determine its magnetic moment
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 21/1/18
SOLVE THIS:
Determine the magnetic field acting at a point on the axis of a bar magnet.
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 21/1/18
Solve this:
Determine the intensity of magnetic field at any point on the perpendicular bisector of a bar magnet.
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 21/1/18
Q Write down the law of the force of attraction or repulsion between two magnetic poles.
Or, Write down Coulomb's law related with the force acting between two point magnetic poles.
Answer
2
Shubhrajyoti Ghosh
Subject: Physics
, asked on 21/1/18
Q What do you mean by pole-strength of a magnet? What is its relation with magnetic moment?
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 21/1/18
Q Define magnetic moment of a bar magnet.
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 21/1/18
Q A current carrying loop behaves as a magnet—explain. What is the magnetic moment of this loop?
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 21/1/18
Q Explain the orientation of magnetic lines of force inside a magnetic material placed in a magnetic field.
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 21/1/18
Q Define magnetic lines of induction.
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 21/1/18
Q What is the magnitude of the magnetic field on the axis of a current carrying loop?
Answer
1
Vaishali.s
Subject: Physics
, asked on 16/1/18
CAN U PLS EXPLAIN THE SOLUTION example 5.5 and example 5.10
pls reply as fast as possible
Answer
1
Shubhrajyoti Ghosh
Subject: Physics
, asked on 15/1/18
Q30
M.C.Q. Question :-
Q13. Choose the correct relation between the transistor parameter
α
and
β
.
a
β
=
1
-
α
α
b
β
=
α
1
-
α
c
β
=
1
+
α
α
d
α
1
+
α
=
β
Answer
1
Aparna Sahu
Subject: Physics
, asked on 15/1/18
Solve this.
A
n
a
l
c
o
h
o
l
-
i
n
-
g
l
a
s
s
t
h
e
r
m
o
m
e
t
e
r
i
s
u
n
m
a
r
k
e
d
a
n
d
h
a
s
|
100
60
c
m
a
n
d
|
0
i
s
10
c
m
,
i
f
|
θ
i
s
50
c
m
t
e
m
p
e
r
a
t
u
r
e
o
f
t
h
e
r
m
o
m
e
t
e
r
w
o
u
l
d
b
e
A
70
°
C
B
80
°
C
C
90
°
C
D
100
°
C
Answer
1
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What are you looking for?
weight becomes one ninth of its value on the surface of the Earth?
Determine the magnetic field acting at a point on the axis of a bar magnet.
Determine the intensity of magnetic field at any point on the perpendicular bisector of a bar magnet.
Or, Write down Coulomb's law related with the force acting between two point magnetic poles.
pls reply as fast as possible
M.C.Q. Question :-
Q13. Choose the correct relation between the transistor parameter .