1)STATEMENT 1 : If current flows through a wire of non uniform cross section potential difference per unit length of the wire in the direction of current is same at different points
STATEMENT 2 : Current in the wire is same throughout
42) STATEMENT 1 : A uniform sphere is placed on a smooth horizontal surface & a horizontal force F is applied on it at a distance h above the surface . The acceleration of centre of mass of body is independent of h
STATEMENT 2 : Acceleration of centre of mass depends only on force & mass of the body
43) STATEMENT 1 : A current carrying conductor of any arbitary shape in uniform magnetic
field experiences a force given by F = i ( l ' x B ) , where l' is the length
vector joining initial & final points
STATEMENT 2 : Force on a current carrying conductor is given by F = (i∫dl ) x B ,
where for a conductor ∫d l represents a vector sum of all the length elements from initial to final
point
4@ :
1) ANS given is D
(I got A )
2) U're right But plz post u're explanation
12nd one
EXPLANATION
1) linear kinematics is decided by net force
2)rotational kinematics is decided by net torque
3RD ONE
I FEEL I AM RIGHT ,SEEN THAT PROOF IN SO MANY PLACES