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College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Transcribed Image Text:A total charge of 6.0 mC passes through a cross-sectional area of a wire in 2.0 s. What is
the current in the wire?
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- Suppose 1.67 Cof charge passes through the filament of a light bulb in 2.00 seconds. How many electrons pass through the filament in 5.00 s? Express all numerical values in three significant figures. The current in the light bulb is: milliamperes The total amount of charge passing through the filament in t=5.00 s is: coulombs Since a single electron has a charge of -1.60 × 10¬19 C, the number of electrons passing through the filament in t=5.00 s is: N= x 1019 electronsarrow_forwardA wire is 1.2 m long and 1.2 mm² in cross-sectional area. It carries a current of 5.6 A when a 3.0 V potential difference is applied between its ends. Calculate the conductivity of the material of which this wire is made. Number i 1 Units (Q.m)^-1arrow_forwardA motorcyclist is making an electric vest that, when connected to the motorcycle’s 12 V battery, will warm her on cold rides. She is using 0.25-mm-diameter copper wire, and she wants a current of 4.0 A in the wire. What length wire must she use?arrow_forward
- A current of 3.4 A flows through a battery for 2 minutes. How much charge passes through the battery in that time?arrow_forwardAn aluminum wire having a cross-sectional area equal to 2.90 x 10-6 m² carries a current of 4.50 A. The density of aluminum is 2.70 g/cm³. Assume each aluminum atom supplies one conduction electron per atom. Find the drift speed of the electrons in the wire. mm/s Need Help? Read Itarrow_forwardA wire has a current of 6.0 mA in it. How do we determine how many electrons pass a given point in a minute?arrow_forward
- A motorcyclist is making an electric vest that, when connected to the motorcycle's 12 V battery, will warm her on cold rides. She is using 0.25-mm-diameter copper wire, and she wants a current of 3.5 A in the wire. What length wire must she use?Express your answer with the appropriate units.arrow_forwardA total charge of 6.58 mC passes through a cross-sectional area of a wire in 1.83 s. What is the current in the wire? Answer in units of mA.arrow_forward
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