A positive particle enters a magnetic strip at angle α to the inward normal. Its circular radius is r and the strip width satisfies d<r(1+sinα). If the first intersection with the far boundary occurs after angular sweep φ, which relation determines φ?

Physics · Magnetic effect of current · motion of charge particle in magnetic field

JEE MainsNEET

A positive particle enters a magnetic strip at angle α to the inward normal. Its circular radius is r and the strip width satisfies d<r(1+sinα). If the first intersection with the far boundary occurs after angular sweep φ, which relation determines φ?

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