Q13.A beam of protons with speed 4 × 105 m s−1 enters a uniform magnetic field of 0. 3 T at an angle 60° to the magnetic field, the pitch of the resulting helical path of protons is close to : (Mass of the proton = 1. 67 × 10−27 kg, charge of the proton = 1. 69 × 10−19C) (1) 2 cm (2) 5 cm (3) 12 cm (4) 4 cm
What This Question Tests
This question involves calculating the pitch of the helical path of a charged particle moving in a uniform magnetic field, requiring the decomposition of velocity into components parallel and perpendicular to the field.
Concepts Tested
Formulas Used
Pitch = v_parallel * T
T = 2πm / (qB)
📚 NCERT Sections This Tests
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)
4.5 — 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?
4.6 — A 3.0 Cm Wire Carrying A Current Of 10 A Is Placed Inside A Solenoid
Physics Class 11 · 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?
📋 Question Details
- Chapter
- Magnetic Effects of Current
- Topic
- Motion in a Magnetic Field
- Year
- 2020
- Shift
- 02 Sep Shift 1
- Q Number
- Q13
- Type
- Numerical
- NCERT Ref
- Class 12 Physics Ch 4: Moving Charges and Magnetism
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