A. zero
B. minimum
C. infinity
D. maximum
Related Mcqs:
- Work done will be maximum if the angle between the force F and displacement d is______________________?
A. 45°
B. 90°
C. 180°
D. 0°Submitted by: admin
- Work done by variable force is determine by dividing____________________?
A. force into small interval
B. displacement into small interval
C. both force and displacement into small intervals
D. force into small and displacement into large intervals - Work done by the force of friction is____________________?
A. always positive
B. always negative
C. positive only for small frictional force
D. positive only for large frictional force - In an angular motion, Newton’s second law of motion is_____________?
A. F=ma
B. F=τp/It
C. Στ = I α
D. All above - If a body a mass of 2 kg is raised vertically through 2m, then the work done will be _________________?
A. 38.2 J
B. 392.1 J
C. 39.2 J
D. 3.92 J - A field in which the work done in a moving a body along closed path is zero is called________________?
A. electric field
B. conservative field
C. electromagnetic field
D. gravitational field - Work done on the body equals to the _____________________?
A. change in its K.E always
B. change in its P.E always
C. change in its K.E and change in its P.E
D. neither change in K.E and nor change in its P.E - A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m while applying the force and the ball goes up to 2 in height further, find the magnitude of the force. Consider g = 10m/s 2
A. 22N
B. 16N
C. 20N
D. 4NSubmitted by: Huzaifa Naseer
- If the plane of the rectangular coil is parallel to the magnetic field (i.e radial magnetic field) the torque on the coil is_____________________?
A. τ = NIAB cosφ
B. τ = NIAB sinφ
C. τ = NIAB tanφ
D. τ = NIAB - If east, west, north, south, up and down are representing the direction of unit vectors, then east x south has the direction along_____________?
A. West
B. North
C. Down
D. Up
