Force will depends on the displacement of end points i. e L = 4R
⇒F=4IRB,Downward
The correct answer is Option (1) → 4 BIR, directed vertically downward
The wire loop shown in the figure carries a steady current \( I \). Each straight section of the loop has length \( d \). A part of the loop lies in the \( xy \)-plane and the other part is tilted at \( 30^\circ \) with respect to the \( xz \)-plane. The magnitude of the magnetic dipole moment of the loop (in appropriate units) is:
The effective magnetic moment (in units of Bohr magneton) for the ground state of an isolated 4𝑓 ion with 6 unpaired electrons in the 4𝑓 shell according to Hund’s rules is (in integer) _____
List-I (Sentence) | List-II (Idiom) |
---|---|
(A) The officer tried to ______ his ideas with his superior by constantly praising. | (I) put your nose to the grindstone |
(B) She realised that she was in the wrong and promised to ______. | (II) read between the lines |
(C) You will do well at academics if you ______. | (III) turn over a new leaf |
(D) A cryptic writing-style forces you to ______ the true meaning of the piece. | (IV) curry favours |