Home › CBSE Class 12 (Science) › Physics › Moving Charges and Magnetism › The field outside an ideal very long solenoid is…
The field outside an ideal very long solenoid is taken to be
APractically zero
BSame as inside
CTwice the inside
DHalf of inside
Answer & Solution
Correct answer: A. Practically zero
As the solenoid becomes longer it resembles a cylindrical sheet, and the outside field approaches zero.
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?