37) 15 Bulbs of 60 W each, run for 6 hours daily and a fridge of 300 W runs for 5 hours daily. Find the forthrightly bill at the rate of 30 paise per unit.

38) Sheaths are used in cables to

39) For the stable operation of interconnected system, the passive element that can be used as interconnecting element is

40) The insulation resistance of a cable of length 10 km is 1 Mega Ohm, its resistance for 50 km length will be

41) The rate of change of momentum is directly proportional to