With current flowing from + to - in a coil, a longitudinal field is cr – McqOptions

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1.	With current flowing from + to - in a coil, a longitudinal field is created. Which of the following may be used to establish the direction of the magnetic field?
A.	Left hand rule
B.	Right hand rule
C.	Ohms law
D.	There is no relevant law
Answer» C. Ohms law

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