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Magnetics question

2023 · 24 Jan · Shift 1 · Q51
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  5. /2023 · 24 Jan · Shift 1 · Q51

Magnetics question

2023 · 24 Jan · Shift 1 · Q51

JEE MainPhysicsMagneticsMCQ+4 / −1
Two long straight wires P and Q carrying equal current 10A each were kept parallel to each other at 5 cm distance. Magnitude of magnetic force experienced by 10 cm length of wire P is F 1_11​. If distance between wires is halved and currents on them are doubled, force F 2_22​ on 10 cm length of wire P will be:
  1. A
    F18\frac{F_1}{8}8F1​​
  2. B
    10 F 1_11​
  3. C
    F110\frac{F_1}{10}10F1​​
  4. D
    8 F 1_11​
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