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Tardigrade
Question
Physics
In the following circuit, the magnitude of current I 1, is A.
Q. In the following circuit, the magnitude of current
I
1
, is _____
A
.
1746
138
JEE Main
JEE Main 2023
Current Electricity
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Answer:
1
Solution:
Junction law at
A
,
1
x
−
(
y
+
5
)
+
2
x
−
2
+
2
x
−
0
=
0
....(1)
Junction law at
B
,
1
y
+
5
−
x
+
1
y
−
0
+
1
y
−
2
=
0
....(2)
On solving equation (1) and Equation (2)
x
=
3
&
y
=
0
At
D
junction
I
1
=
i
1
+
i
2
I
1
=
1
y
−
0
+
2
x
−
0
=
1
0
−
0
+
2
3
−
0
I
1
=
15
A