In activity shown, how do you think the displacement of rod AB will be affected :A stronger horse shoe magnet is used,

In activity shown, how do you think the displacement of rod AB will be affected :if the current in rod ab is increased,

In activity shown, how do you think the displacement of rod AB will be affected :Length of the rod AB is increased

While experimentation, why do you think it is difficult to assign any affect seen to any single hormone?

What do you think is the purpose of using a voltmeter, instead of an ammeter, to determine the large resistance X?

A particle of charge q is moving with velocity v in the presence of crossed electric field E and magnetic field B as shown. Write the condition under which the particle will continue moving along x-axis. How would the trajectory of the particle be affected if the electric field is switched off?

Do you think microbes can also be used as source of energy ? If yes, how ?