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- PHY102 Physics II © Dr.Cem Özdoğan
- The Magnetic Field B
- Defined in terms of the force FB acting on a test particle with charge q moving through the field with velocity v
- Magnetic Force on a Current Carrying wire
- A straight wire carrying a current i in a uniform magnetic field experiences a sideways force
- The force acting on a current element i dL in a magnetic field is
- Torque on a Current Carrying Coil
- A coil (of area A and N turns, carrying current i) in a uniform magnetic field B will experience a torque τ given by
- A Charge Particle Circulating in a Magnetic Field
- Applying Newton’s second law to the circular motion yields
- from which we find the radius r of the orbit circle to be