c) Which can be considered a magnetic dipole? Circle all that are true. 0) an id

Question

c) Which can be considered a magnetic dipole? Circle all that are true. 0) an ideal solenoid (i) asmall current loop (i) a bar magnet (iv) an ideal toroid (v) an sheet of current(vi) a long straight wire carrying current d) Which statements are not true of ferromagnetic materials? Circle all that apply. 0) The relative permeability is large and negative. (ii) The large , is usually non-linear. (i)Common ferromagnetic materials include Ni, Co, Si and Fe (iv) Domains have permanent magnetic moments which align with external magnetic fields (v) Some magnetization is retained when the external H-field is removed. (vi) Ferromagnetic materials are used to make most familiar magnets e) The x-y plane is the boundary between air above 4u-Ho forz > 0) and a magnetic material below ( 2000,10 for z

Explanation / Answer

Solving 1st question of the page

(c) magnetic dipole is a closed loop or a magnet so magnetic dipole are

(i)a small current loop

(ii)a bar magnet

(iii)an ideal toroid

(iv)an ideal solenoid

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