Q56.A uniform electric field and a uniform magnetic field are acting along the same direction in a certain region. If an electron is projected along the direction of the fields with a certain velocity then (1) its velocity will decrease. (2) its velocity will increase. (3) it will turn towards right of direction of motion. (4) it will turn towards left of direction of motion
What This Question Tests
This question tests the conceptual understanding of the Lorentz force and how its electric and magnetic components act on a charged particle moving parallel to uniform electric and magnetic fields.
Concepts Tested
Formulas Used
F_E = qE
F_M = q(v × B)
📚 NCERT Sections This Tests
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?
4.11 — In A Chamber, A Uniform Magnetic Field Of 6.5 G (1 G = 10–4 T) Is
Physics Class 11 · Chapter 4
4.11 In a chamber, a uniform magnetic field of 6.5 G (1 G = 10–4 T) is maintained. An electron is shot into the field with a speed of 4.8 × 106 m s–1 normal to the field. Explain why the path of the electron is a circle. Determine the radius of the circular orbit. (e = 1.5 × 10–19 C, me = 9.1×10–31 kg)
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.
📋 Question Details
- Chapter
- Magnetic Effects of Current
- Topic
- Motion of Charged Particle in E and B fields
- Year
- 2005
- Shift
- Unknown
- Q Number
- Q56
- Type
- Conceptual
- NCERT Ref
- Class 12 Physics Ch 4: Magnetic Effects of Current
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