Answer :
The frictional torque is in the direction of N pole to S pole according to the right hand rule.
What is the right hand rule?
The right hand rule is a hand mnemonic in physics that is used to remember which way three-dimensional axes or parameters point. The right hand rule was developed in the 19th century by British physicist John Ambrose Fleming for electromagnetism applications. When the other two parameters are known, it is most frequently employed to identify the direction of the third parameter (magnetic field, current, magnetic force).
A conductor, like a copper wire, induces an electric current when it passes through a magnetic field (B). Faraday's Law of Induction is a name given to this phenomenon. The directions of the conductor's motion (velocity), magnetic field, and induced current are related if the conductor is moved inside the magnetic field. We can look into Faraday's Law of Induction using Fleming's right hand rule.
emf = -N (ΔФ[tex]_{B}[/tex]/Δt)
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