An electron enters a uniform magnetic field with speed v. It describes a semicircular…
Physics · Class 12 · CBSE — Moving Charges and Magnetism
An electron enters a uniform magnetic field with speed v. It describes a semicircular path and comes out of the field. The final speed of the electron is:
- Zero
- v
- \(\frac{v}{2}\)
- 2v
Answer
(B) v
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