In which direction does the magnetic needlepoint?

(A) North

(B) Akash

(C) East

(D) None of these

In what direction would a compass needlepoint, if it were free to point in all directions when located at the Earth's north magnetic pole in Canada?

A current carrying wire is wrapped around cardboard tube as shown. In which direction does the magnetic field point inside the tube?

Left

right

up

down

out of the screen

into the screen

Choose the statement(s) that is/are true of a magnetic field.
(i) A magnetic needle placed in a magnetic field will align in thedirection of the field.
(ii) Magnetic field lines start at the north pole and end at thesouth pole.
(iii) A commonly used unit for measuring magnetic field is thegauss (G).
(iv) The SI unit for magnetic field is the tesla (T) and it is thesame as N.A^-1.m^-1