Find current 'I' in following circuit:

This question was previously asked in
MPPGCL JE Electrical 28 April 2023 Shift 2 Official Paper
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  1. 2 A
  2. 4 A
  3. 1 A
  4. 3 A

Answer (Detailed Solution Below)

Option 4 : 3 A
Free
MPPGCL JE Electrical Full Test 1
100 Qs. 100 Marks 120 Mins

Detailed Solution

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Kirchhoff's Current Law

According to Kirchhoff's Current Law, the total current entering a junction or a node is equal to the charge leaving the node. The algebraic sum of every current entering and leaving the node has to be zero.

Calculation

Assuming incoming current as negative and outcoming current as positive.

Applying KCL at node A:

- 4 + 1 + I = 0

I = 4 - 1

I = 3A

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