An electron gun with its anode at a potential of 100 V fires out electrons in a spherical…
Physics · Class 12 · CBSE — Moving Charges and Magnetism
An electron gun with its anode at a potential of 100 V fires out electrons in a spherical bulb containing hydrogen gas at low pressure (10–2 mm of Hg). A magnetic field of 2.83 × 10–4 T curves the path of the electrons in a circular orbit of radius 12 cm. The 
ratio is
ratio is- 1.73 × 10–11 C kg–1
- 1.73 × 108 C kg–1
- 1.73 × 10–8 C kg–1
- 1.73 × 1011 C kg–1
Answer
(D) 1.73 × 10 11 C kg –1
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- The work done in moving a dipole from its most stable to most unstable position in a 0.09 T uniform magnetic…
- Two tangent galvanometers having coils of the same radius are connected in series. A current flowing in them…
- A current of 5 A is flowing in a wire of length 1.5 cm. A force of 7.5 mN acts on it when it is placed in a…
- A straight conductor is carrying a current of 2 A in +x direction along it. A uniform magnetic field B =(0.6…
- Assertion (A): A current carrying square loop made of a wire of length L is placed in a magnetic field. It…
- A closely wound solenoid of 2000 turns and area of cross-section 1.5 10 -4 m 2 carries a current of 2.0 A. It…
- The force on a charge due to a magnetic field can act
- A 1 cm segment of a wire lying along x -axis carries current of 0.5 A along +x direction. A magnetic field B…
More Moving Charges and Magnetism questions · Browse all practice questions