1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard XII
Physics
Mixed Combination of Cells
In the follow...
Question
In the following diagram ammeter reading is 4A, voltmeter reading is 20V, the value of R is:
A
> 5
Ω
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
<5
Ω
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
=5
Ω
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
≤
5
Ω
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is
A
> 5
Ω
⇒
I
=
4
A
V
A
B
=
20
V
V
A
B
=
I
′
R
20
4
<
R
At least a minute amount of current flows through V . [very very small]
⇒
t
h
e
n
I
′
<
I
V
A
B
<
I
R
R
>
5
Ω
Suggest Corrections
0
Similar questions
Q.
In the circuit shown , the resistance of voltmeter is
10
,
000
Ω
and that of ammeter is
20
Ω
. The ammeter reading is
0.10
A
and voltmeter reading is
12
V
. Then value of
R
is equal to
Q.
A part of a circuit is shown in figure. Here reading of ammeter is
5
A
and voltmeter is
96
V
& voltmeter resistance is
480
Ω
. Then find the resistance
R
Q.
If the voltmeter reads
0.2
V
and the ammeter reads
0.101
A
, the resistance of the voltmeter is (in
Ω
)
Q.
Consider the circuit shown in the figure. An ideal voltmeter reads 10
V
across
X
. If an ideal ammeter isconnected across
X
it reads 5
A
. Find the value of
x
in
Ω
.
Q.
The actual value of resistance
R
, shown in the figure is
30
Ω
. This is measured in an experiment as shown using the standard formula
R
=
V
I
, where
V
and
I
are the reading of the voltmeter and ammeter, respectively. If the measured value of
R
is
5
%
less, then the internal resistance of the voltmeter is
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
Cell and Cell Combinations
PHYSICS
Watch in App
Explore more
Mixed Combination of Cells
Standard XII 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