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an Electric Lamp of 100 ?, A Toaster of Resistance 50 ?, And a W in Text Question Chapter 12 Electricity Science

In text Q & Answers of page 216 Q-2 An electric lamp of 100 Ω, a toaster of resistance 50 Ω, and a water filter of resistance 500 Ω are connected in parallel to a 220 V source...? Chapter 12: Electricity Science Class 10 solutions are developed for assisting understudies with working on their score and increase knowledge of the subjects. An electric lamp of 100 ?, a toaster of resistance 50 ?, and a water filter of resistance 500 ? are connected in parallel to a 220 V source...? is solved by our expert teachers. You can get ncert solutions and notes for class 10 chapter 12 absolutely free. NCERT Solutions for class 10 Science Chapter 12: Electricity is very essencial for getting good marks in CBSE Board examinations

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Ans: Resistance of electric lamp (R1) = 100 Ω
Resistance of toaster (R2) = 5  0 Ω
Resistance of water filter (R3) = 500 Ω
Potential difference of the source, V = 220 V
Since all the resistance are in parallel then the equivalent resistance R of the circuit will be

According to Ohm’s law
Ohm’s Law
Where current flowing through the circuit = I

All the three given appliances are drawing 7.04 A of current.
Therefore, current drawn by an electric iron connected to the same source of potential 220 V = 7.04 A
Let   Rʹ be the resistance of the electric iron. According to Ohm’s law,

Therefore, the resistance of the electric iron is 31.25 Ω and the current flowing through it is 7.04 A.

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