Q10.A long straight wire with a circular cross-section having radius ๐ , is carrying a steady current ๐ผ. The current ๐ผ is uniformly distributed across this cross-section. Then the variation of magnetic field due to current ๐ผ with distance ๐๐< ๐ from its centre will be (1) ๐ตโ๐ (2) ๐ตโ1 ๐ 1 (3) ๐ตโ๐2 (4) ๐ตโ ๐2
What This Question Tests
This question tests the ability to recall the relationship between the magnetic field and distance inside a long straight wire carrying uniform current, derived from Ampere's Law.
Concepts Tested
Formulas Used
B = (ฮผโIr) / (2ฯR^2) for r < R
๐ NCERT Sections This Tests
4.6 โ A 3.0 Cm Wire Carrying A Current Of 10 A Is Placed Inside A Solenoid
Physics Class 11 ยท Chapter 4
4.6 A 3.0 cm wire carrying a current of 10 A is placed inside a solenoid perpendicular to its axis. The magnetic field inside the solenoid is given to be 0.27 T. What is the magnetic force on the wire?
4.7 โ Two Long And Parallel Straight Wires A And B Carrying Currents Of
Physics Class 11 ยท 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 โ A Horizontal Overhead Power Line Carries A Current Of 90 A In East To
Physics Class 11 ยท 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?
๐ Question Details
- Chapter
- Magnetic Effects of Current
- Topic
- Magnetic field due to a current-carrying wire
- Year
- 2022
- Shift
- 25 Jun Shift 1
- Q Number
- Q10
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 4: Moving Charges and Magnetism
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