Fleming's left hand rule gives the direction of
Correct answer: B. the force on a current carrying conductor in a magnetic field
- A. the induced current in a generator
- B. the force on a current carrying conductor in a magnetic field
- C. the magnetic field around a wire
- D. the induced emf
Explanation
With the first finger along the field and the second along the current, the thumb gives the motion or force, which is the motor rule. The right hand rule is the generator rule, giving the direction of an induced current. Remembering that left is for motors and right is for generators avoids most of the confusion here.
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About Magnetic Flux Density
Magnetic flux density measures the magnetic force acting on a current carrying conductor or moving charge in a magnetic field. Work includes the relations B equals F divided by IL and F equals qvB, the tesla as its SI unit, field direction and the distinction between flux density and magnetic flux.
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