Q15.Two long current carrying conductors are placed parallel to each other at a distance of 8 cm between them. The magnitude of magnetic field produced at mid-point between the two conductors due to current flowing in JEE Main 2022 (29 Jun Shift 2) JEE Main Previous Year Paper them is 300 μT. The equal current flowing in the two conductors is : (1) 30 A in the same direction. (2) 60 A in the opposite direction. (3) 30 A in the opposite direction. (4) 300 A in the opposite direction.
What This Question Tests
This question tests the ability to apply the formula for the magnetic field due to long straight wires and the superposition principle to find the current based on the net magnetic field at a midpoint.
Concepts Tested
Formulas Used
B = μ_0 I / (2πr)
📚 NCERT Sections This Tests
4.7 — Two Long And Parallel Straight Wires A And B Carrying Currents Of
Physics Class 11 · Chapter 4
4.7 Two long and parallel straight wires A and B carrying currents of 8.0 A and 5.0 A in the same direction are separated by a distance of 4.0 cm. Estimate the force on a 10 cm section of wire A.
4.4 — A Horizontal Overhead Power Line Carries A Current Of 90 A In East To
Physics Class 11 · Chapter 4
4.4 A horizontal overhead power line carries a current of 90 A in east to west direction. What is the magnitude and direction of the magnetic field due to the current 1.5 m below the line?
4.5 — What Is The Magnitude Of Magnetic Force Per Unit Length On A Wire
Physics Class 11 · Chapter 4
4.5 What is the magnitude of magnetic force per unit length on a wire carrying a current of 8 A and making an angle of 30º with the direction of a uniform magnetic field of 0.15 T?
📋 Question Details
- Chapter
- Magnetic Effects of Current
- Topic
- Magnetic Field due to Long Straight Wires
- Year
- 2022
- Shift
- 29 Jun Shift 2
- Q Number
- Q15
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 4: Magnetic Effects of Current
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