In Figure 2 below, CD is an infinitely long and straight metallic wire carrying a current I. Point…
In Figure 2 below, CD is an infinitely long and straight metallic wire carrying a current I. Point P is at a perpendicular distance $r$ from it.
Which combination of I and r gives maximum magnetic field at point P, pointing into the plane of the paper?
- a$I = 4\text{A}$ towards C, with $r = 0\cdot500\text{ m}$
- b$I = 4\text{A}$ towards D, with $r = 0\cdot250\text{ m}$
- c$I = 8\text{A}$ towards C, with $r = 0\cdot125\text{ m}$
- d$I = 8\text{A}$ towards C, with $r = 0\cdot050\text{ m}$
Answer
Answer
AIWritten by AI (gemini) - it can contain mistakes.
Correct option: d
(d) $I = 8\text{ A}$ towards C, with $r = 0\cdot050\text{ m}$
From ISC 2027 Specimen Physics Paper 1, question 1(A)(iii).