Chapter 8, Problem AM

KEY TERMS

1. electric charge (8.1) 2. electrons 3. protons 4. law of charges 5. Coulomb’s law 6. electric field 7. current (8.2) 8. electric potential energy 9. voltage

10. resistance 11. Ohm’s law 12. electric power 13. direct current (dc) 14. alternating current (ac) 15. series circuit (8.3) 16. parallel circuit 17. law of poles (8.4)

18. magnetic field 19. ferromagnetic 20. magnetic domains 21. magnetic declination 22. electromagnetism (8.5) 23. motor 24. generator 25. transformer

For each of the following items, fill in the number of the appropriate Key Term from the preceding list.

a. _____ E = F/q₊ mapping

To determine

To pick the right word from list: The phenomenon for mapping $E=\frac{F}{q_{+}}$.

Answer to Problem AM

The phenomenon for mapping $E=\frac{F}{q_{+}}$ is called electric field.

Explanation of Solution

To determine or mapping the  electric force, an arbitrary charge is placed in the field, then the magnitude of the force on it can be found by $F=q_{+}E$, with the direction depending on the sign of the charge or how it would react to a positive test charge.

Specifically, the electric field is defined to be the ratio of the Coulomb force to the test charge.

The expression for electric field is,

$E=\frac{F}{q_{+}}$

Here,

$F$ Is the force

$q_{+}$ Is the charge

Thus, the phenomenon for mapping $E=\frac{F}{q_{+}}$ is called electric field.

Conclusion:

Therefore, the word electric field can be picked from the list.