Question

29.
A cable carrying a direct current is buried in a wall which stands in
y a direct current is buried in a wall which stands in a north-south plane. The north pole
horizontal magnetic compass needle on the west side of the wall is found towards sou
The cable is laid.
of the wall is found towards south instead of North.
(A) Horizontal with current from North to South
(B) Vertically upwards and the current is flowing down ward
(C) Horizontal with current from South to North
(D) Vertically upwards and the current is also flowing upward

Answer 1

Answer:

since wall north south plane me hai (given)

island Matlab vertically hame wire ko placed karna hai

ab agar compass ki needle sahi direction show kar rahi hoti to iska Matlab current north to south zata I.e. downward par Zab vo needle south ki Tara deflect ho rahi hai to current south to north hi zaega I.e upward direction so option D is correct please mark me as brainlieast