What determines the rate at which energy is delivered by a electric current?An electric motor takes 5A from a 220 V line. Calculate
The self indcutance 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 the 20 pens is Rs.180, calculate the cost of 10 pens
The cost of 5 metres of a particular quality of cloth is Rs 210. Tabulate the cost of 2, 4, 10 and 13 metres of cloth of the same type.
Calculate the electricity bill amount for the month of November of a family if 4 tube lights of 40 W each for seven hours, a TV of 150 W for three hours and two bulbs of 60 W each for four hours are used per day. The cost per unit is RS 3.50.
An electric oven of 2k W power rating is operated in a domestic electric circuit (220 V) That has current rating of 5 a. What result do you expect? Explain.
The cost of a flower vase is Rs. 120. If the shopkeeper sells it at a loss of 10%, find the price at which it is sold.
A household uses the following electric appliance: Refrigerator of rating 400 W for 10 hours each day , find the energy consumed.
