kWh is the unit of
(a) power (b) force
(c) energy (d) none of these
(a) Work is said to be done by a force only when _________
(b) Work done = Force × _________
(c) The energy of a body is its capacity to do ______
(d) The S.I. unit of energy is ______
(e) The potential energy of a body is due to its ______ and kinetic energy of body is due to its ______
(f) Gravitational potential energy U = mass × force of gravity on unit mass × _________
(g) Kinetic energy = 12× mass ×_________
(h) Power P = ______ / time taken.
(i) The S. I. unit of power is ______
(j) 1 H.P. = ______ W
The current through a 10 V tungsten filament lamp connected to a 10 V source of negligible resistance is 2 A. Calculate the electrical energy (in kWh) consumed in 5 hours.