MCQ
Assertion (A): A proton moves horizontally towards a vertical long conductor having an upward electric current. It will deflect vertically downward.
Reason (R): Seeing the proton and the conductor from the side of the proton, the magnetic field at the site of the
proton will be towards the right. Hence the force $\vec{F}=q \vec{\nu} \times \vec{B}$ will deflect the proton vertically downward.
Reason (R): Seeing the proton and the conductor from the side of the proton, the magnetic field at the site of the
proton will be towards the right. Hence the force $\vec{F}=q \vec{\nu} \times \vec{B}$ will deflect the proton vertically downward.
- ABoth A and R are true and R is the correct explanation of A.
- BBoth A and R are true but R is not the correct explanation of A.
- CA is true but R is false
- DA is false but R is true