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Physics Bootcamp

Samuel J. Ling

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Section 8.17 Electric Current Bootcamp

Exercises Exercises

Electric Current

1. Computing Number of Electrons in Metals.

Follow the link: Exercise 8.1.5.1.

2. Rate of Flow of Electrons in a Current-Carrying Copper Wire.

Follow the link: Exercise 8.1.5.2.

3. Drift Speed of Electrons in Copper Wire.

Follow the link: Exercise 8.1.5.3.

4. Current Density and Drift Speed in a Current Carrying Copper Wire.

Follow the link: Exercise 8.1.5.4.

5. Surface Current Density in an Aluminum Plate.

Follow the link: Exercise 8.1.5.5.

6. Current Desity in a Current Carrying Copper Pipe.

Follow the link: Exercise 8.1.5.6.

7. Current Density in Oppositely Flowing Cylindrical Wire and Shell.

Follow the link: Exercise 8.1.5.7.

8. Current Through Different Parts of a Cross-Section of a Steel Wire.

Follow the link: Exercise 8.1.5.8.

9. (Calculus) Artificial Example of Current Density Varying Linearly Across Cross-Section of a Wire.

Follow the link: Exercise 8.1.5.9.

10. (Calculus) Artificial Example of Current Density That Drops With Distance From Axis.

Follow the link: Exercise 8.1.5.10.

Ohm’s Law

11. Resistance from Resitivity, Length, and Thickness.

Follow the link: Example 8.7.

12. Resistivity and Conductivity from Ohm’s Law Application.

Follow the link: Exercise 8.3.4.1.

13. Resistivity and Conductivity from Ohm’s Law on a Slab.

Follow the link: Exercise 8.3.4.2.

14. Potential Drop Across and Electric Field in a Wire Carrying Current.

Follow the link: Exercise 8.3.4.3.

15. Current Density in a Wire from a Potential Difference across the Wire.

Follow the link: Exercise 8.3.4.4.

Power Dissipation in a Resistor

16. Energy Used by Light Bulb.

Follow the link: Example 8.9.

17. Resistance of Heating Element from Power Consumed.

Follow the link: Exercise 8.4.1.

18. Resistance in Filaments of a 60-W Light Bulb.

Follow the link: Example 8.10.

19. Rise in Temperature of a Copper Rod Carrying Current.

Follow the link: Exercise 8.4.2.

20. Heating an Aluminum Rod by Passing a Current Through it.

Follow the link: Exercise 8.4.3.