How much current does a 300.0 W device draw when 12 V is placed across it? **Quiz Question: Calculating Current****Question:**How much current does a 300.0 W device draw when 12 V is placed across it?**Answer Choices:**- ○ $ 4.2 \times 10^2 $ A- ○ $ 3.6 \times 10^4 $ A- ○ $ 4.0 \times 10^{-2} $ A- ○ $ 2.5 \times 10^1 $ A**Explanation:** To determine the current drawn by an electrical device, you can use the formula derived from Ohm's Law and the power equation:\[ P = V \times I \]Where:- $ P $ is the power (300.0 W)- $ V $ is the voltage (12 V)- $ I $ is the currentRearranging the formula to solve for current $ I $:\[ I = \frac{P}{V} \]Substituting in the given values:\[ I = \frac{300.0 \, \text{W}}{12 \, \text{V}} = 25 \, \text{A} \]Therefore, the correct answer is:- ○ $ 2.5 \times 10^1 $ A

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How much current does a 300.0 W device draw when 12 V is placed across it? O 4.2 × 10² A O 3.6 × 10ª A 2 O 4.0 × 10¯ A O 2.5 x 10' A

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 40P: Four resistors are connected to a battery as shown in Figure P21.40. The current in the battery is...

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