Question

Write joules law of heating. Two lamps, one rated 100w:220v, and the other 60w ;220v, are connected in parallel to the electric mains supply. Find the current drawn by two bulbs from the line if the supply voltage is 220v.

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Answer 1

Answer:

was a hot summer day when Trishna kept her favourite plant in the balcony The sunlight was too hard to bear. After a few hours Trishna observed that the leaves of the plant have wilted down. Trisha started crying that her plant has been died. But her mother told that she will make it normal after sometime, Answer the following questions based on above information: What has happened with the plant? (u) How will Trishna's mother make the plant normal (1) Which type of value is explored by Trishna's mother

Answer 2

Joule's law of heating states that , "The heat produced in a resistor is directly proportional to (1) square of current (I^2) (2) resistance of the resistor (R) and (3) time for which the current flows through the resistor .