Electrons accelerated from rest under a potential difference of 4000V enter perpendicularly into the uniform magnetic field and draw a circle with a radius of 9 cm. Find the magnitude of the magnetic...

Electrons accelerated from rest under a potential difference of 4000V enter perpendicularly into the uniform magnetic field and draw a circle with a radius of 9 cm. Find the magnitude of the magnetic field.

Extracted text: 30 - düzgün manyetik alan çiziyor. Manyetik ala O A) 22.105 B) 25.106 C) 23.3.104 D) 25.108 O E) 28.103