the space that is emptied below the level of mercury column in the tube
the space that is emptied above the level of mercury column in the tube
the space that is full above the level of mercury column in the tube
the space that is full below the level of mercury column in the tube
42.39 m/sec
4.239 m/sec
42.39 m/min
4.239 m/min
stable equilibrium
unstable equilibrium
neutral equilibrium
None of the above
half
equal
twice
thrice
voltage
current
magnetic field
direction of force on the conductor