Q19.Figure shows a part of an electric circuit. The potentials at points a, b and c are 30 V, 12 V and 2 V respectively. The current through the 20 Ω resistor will be, (1) 1. 0 A (2) 0. 4 A (3) 0. 6 A (4) 0. 2 A
What This Question Tests
This question applies Kirchhoff's Current Law at node 'b' along with Ohm's law to find the current through a specific resistor, given potentials at various points.
Concepts Tested
Formulas Used
I = V/R
Kirchhoff's current law
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📋 Question Details
- Chapter
- Current Electricity
- Topic
- Kirchhoff's laws
- Year
- 2023
- Shift
- 06 Apr Shift 2
- Q Number
- Q19
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 3: Current Electricity
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