1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard VII
Physics
Electric Current and Electric Cell
A cell of e.m...
Question
A cell of e.m.f. 2V and negligible internal resistance is connected to resistors
R
1
and
R
2
as shown in the figure. The resistance of the voltmeter,
R
1
and
R
2
are 80
Ω
, 40
Ω
and 80
Ω
respectively. The reading of the voltmeter is:-
Open in App
Solution
Voltmeter resistance
R
v
=
80
Ω
Reading of voltmeter
V
=
R
v
R
v
+
R
1
+
R
2
E
Or
V
=
80
80
+
40
+
80
×
2
=
0.8
Volts
Suggest Corrections
0
Similar questions
Q.
In the circuit shown in figure,
V
1
and
V
2
are two voltmeters having resistances
6000
Ω
and
4000
Ω
, E.M.F of battery is
250
Volts
,
having negligible internal resistance. Two resistances
R
1
and
R
2
are
4000
Ω
and
6000
Ω
respectively, then :
Q.
Figure shows two resistors
R
1
and
R
2
connected to a battery having an emf of
40
V and negligible internal resistance. A voltmeter having a resistance of
300
Ω
is used to measure potential difference across
R
1
. Find the reading of the voltmeter?
Q.
In the given circuit the internal resistance of the
18
V
cell is negligible. If
R
1
=
400
Ω
,
R
3
=
100
Ω
and
R
4
=
500
Ω
and the reading on an ideal voltmeter across
R
4
is
5
V
, then the value of
R
2
will be
Q.
Resistor
R
1
and
R
2
have an equivalent resistance of
6
Ω
when connected in the circuit shown. The resistance of
R
1
could be (in
Ω
)
(
R
1
<
R
2
)
Q.
In figure the emf of the cell is
2
V
and internal resistance is negligible. The resistance of the voltmeter is
80
ohm. The reading of the voltmeter will be
View More
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Related Videos
The Electric Cell
PHYSICS
Watch in App
Explore more
Electric Current and Electric Cell
Standard VII Physics
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
AI Tutor
Textbooks
Question Papers
Install app