The self - inductance of the motor of an electric fan is 10 H. In order to impart maximum power at 50 Hz, it should be connected to a capacitance of
If the cost of 12 pencils is Rs 24, then find the cost of 10 pencils.
The cost of 7 oranges and 10 apples is Rs 192 whereas the cost of same kind of 5 organges and 9 apples is Rs 165. Find the cost of one orange and that of one apple.
In a house three bulbs of 100w each are lighted for 4 hours daily and six tube lights of 20 W each are lighted for 5 hours daily and a refrigerator of 400 W is worked for 10 hours daily for a month of 30 days. Calculate the electricity bill if the cost of one unit is Rs 4.00
