Q27.An electron moves through a uniform magnetic field āšµ= šµ0 ^i + 2šµ0 ^j T. At a particular instant of time, the ā velocity of electron is āš¢= 3 ^i + 5 ^j m s-1. If the magnetic force acting on electron is š¹= 5š ^k N, where š is the charge of electron, then the value of šµ0 is ____ T.
What This Question Tests
This question applies the Lorentz force formula (vector cross product) to find an unknown component of the magnetic field, given the force, velocity, and charge.
Concepts Tested
Formulas Used
F = q(v Ć B)
š NCERT Sections This Tests
4.6 ā A 3.0 Cm Wire Carrying A Current Of 10 A Is Placed Inside A Solenoid
Physics Class 11 Ā· 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?
4.11 ā In A Chamber, A Uniform Magnetic Field Of 6.5 G (1 G = 10ā4 T) Is
Physics Class 11 Ā· Chapter 4
4.11 In a chamber, a uniform magnetic field of 6.5 G (1 G = 10ā4 T) is maintained. An electron is shot into the field with a speed of 4.8 Ć 106 m sā1 normal to the field. Explain why the path of the electron is a circle. Determine the radius of the circular orbit. (e = 1.5 Ć 10ā19 C, me = 9.1Ć10ā31 kg)
4.5 ā What Is The Magnitude Of Magnetic Force Per Unit Length On A Wire
Physics Class 11 Ā· 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 30Āŗ with the direction of a uniform magnetic field of 0.15 T?
š Question Details
- Chapter
- Magnetic Effects of Current
- Topic
- Magnetic force on a moving charge
- Year
- 2024
- Shift
- 31 Jan Shift 1
- Q Number
- Q27
- Type
- Numerical
- NCERT Ref
- Class 12 Physics Ch 4: Moving Charges and Magnetism
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