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NTA Abhyas JEE Main2020PhysicsCurrent ElectricityPractice

An 1800 W toaster, a 1 . 3 kW electric fan and a 100 W lamp are plugged in the same 120 V circuit i.e., all the three devices are in parallel. What is the approximate value of the total current (i.e. the sum of current drawn by the three devices) through the circuit?

Options

  1. A40   A
  2. B120   A
  3. C18   A
  4. D27   A

Correct answer

D. 27   A

Step-by-step solution

Power consumed P = P 1 + P 2 + P 3 .....(i) And P = V I From Equation. (i), we get P 1 + P 2 + P 3 = V I ⇒ 1800 + 1300 + 100 W = 120 I ⇒ 3200 = 120 I I = 26.66 A ≈ 27 A

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