1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard X
Physics
Combination of Resistances
If the readin...
Question
If the reading of the Ideal voltameter (V) in the given circuit is 6V, then find the reading of the ammeter (A).
Open in App
Solution
Given: a circuit, where the reading of the Ideal voltameter (V) is 6V
To find the reading of the ammeter (A).
Solution:
The current in the resistor
15
Ω
can be found using the
Ohm's law,
I
=
V
R
⟹
I
=
6
15
⟹
I
=
0.4
A
The 2
10
Ω
resistors are in parallel, so there equivalent resistance will be,
R
P
=
10
×
10
10
+
10
⟹
R
P
=
100
20
⟹
R
P
=
5
Ω
Now
R
P
and
15
Ω
are in series.
As we know same current flows through a series circuit, so the reading of the ammeter is
0.4
A
Suggest Corrections
0
Similar questions
Q.
In the given circuit ammeter and voltmeter are ideal and battery of
6
V
has internal resistance
1
Ω
. The reading of voltmeter and ammeter is:
Q.
In the circuit shown in the figure, ammeter and voltmeter are ideal. If
E
=
4
V
and
R
=
15
Ω
and
r
=
1
Ω
, then the reading of the ammeter is
Q.
In the circuit shown in figure, E is a battery of emf
6
V
and internal resistance
1
Ω
. Find the reading of the ammeter A, if it has negligible resistance.
Q.
An ammeter, suspected to give inaccurate reading, is connected in series with a silver voltameter. The ammeter indicates. 0.54 A. A steady current passed for one hour deposits 2.0124 gm of silver. If the e.c.e. of silver is
1.118
×
10
−
3
gmC
−
1
, then the error in ammeter reading is
Q.
An ac ammeter is used to measure current in a circuit. When a given direct current passes through the circuit, the ac ammeter reads
3
A
. When another alternating current passes through the circuit, the ac ammeter reads
4
A
. Then find the reading of this ammeter (in A), if dc and ac flow through the circuit simultaneously.
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
Combination of Resistances
PHYSICS
Watch in App
Explore more
Combination of Resistances
Standard X 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