An electric oven of 2 kW power rating is operated in a domestic electric circuit (220 V) that has a current rating of 5 A. What result do you expect? Explain.

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  1. Class 10
  2. Chapter 13 Class 10 - Magnetic Effects of Electric Current (Term 2)

Transcript

Question 2 Page 238 An electric oven of 2 kW power rating is operated in a domestic electric circuit (220 V) that has a current rating of 5 A. What result do you expect? Explain. Power of the electric oven = P = 2 kW = 2000 W Potential Difference = V = 220 W Current rating of oven = 5 A If current drawn by oven is higher than current rating of oven (5A), then there will be a short-circuit. We know that P = V I I = 𝑃/𝑉 I = 2000/220 I = 200/22 I = 100/22 I = 100/11 I = 9.09 A This current drawn by the oven is higher than the current rating of oven ∴ There will be a short-circuit

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CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo