Physics - Online Test
A rectangular loop and a circular loop are moving out of a uniform magnetic field region to a field-free region with a constant velocity v as shown in fig. In which loop do you except the induced EMF to be constant during the passage out of the field region if the field is normal to the loops.
Work function depends only on nature of metal.
So that kinetic energy of an electron increase when frequency of radiation increases.
The acceleration due to gravity at the North Pole of Neptune is approximately 10.7 m/s2 . Neptune has mass 1.0 kg and radius 2.5 km and rotates once around its axis in about 16 h. What is the gravitational force on a 5.0-kg object at the north pole of Neptune?
Gravitational Force
F=mg
Work done is positive when force applied and displacement are in same direction.
in this case angle between force and displacement is zero (i.e. ) so that work done is positive.
