Home › CBSE Class 12 (Science) › Physics › Moving Charges and Magnetism › Wires 0.1 m apart carry 10 A and 20 A in paralle…
Wires 0.1 m apart carry 10 A and 20 A in parallel. Force per metre?
A4 × 10^-4 N/m
B8 × 10^-4 N/m
C4 × 10^-5 N/m
D2 × 10^-4 N/m
Answer & Solution
Correct answer: A. 4 × 10^-4 N/m
f = μ0 Ia Ib / 2πd = 2 × 10^-7 × 10 × 20 / 0.1 = 4 × 10^-4 N/m.
Related questions
In 1946 Lawrence's team built an early version of which cyclotron type?What did Lawrence invent from the cyclotron design during the Manhattan Project?Which type of particle beam are cyclotrons primarily used for in radiotherapy?Cyclotron beams in particle therapy are mainly used to treat which condition?Which isotope made in cyclotrons is used for PET imaging?Space charge in a cyclotron beam refers to which effect?The cyclotron design is more space efficient than a linear accelerator because of what?In a cyclotron, what makes the particles orbit?