|
QUIZ 16 CHAPTER 23 |
| 18. 1 ampere is equal to |
| a. 1 s/coulomb |
| b. 1 coulomb/s2 |
| c. 1 coulomb·s |
| d. 1 coulomb/s |
| 19. How has the voltage across a wire changed if the current through the wire is doubled ? |
| a. The voltage is reduced by one half |
| b. The voltage is doubled |
| c. the voltage does not change. |
| d nota |
| 20.What is the effect on the current in a wire if both the voltage across it and the resistance are reduced by one half? |
| a. the current is doubled |
| b. the current is reduced by one half |
| c. the current remains the same |
| d.nota |
| 21. True or False. 1 coulomb of charge that passes through a resistive wire from the positive terminal to the negative terminal of a 6-volt battery loses 6 joules of potential energy to heat. |
| a. True |
| b. False |
| 22. A 5-ohm resistor has a 6 -A current in it. What is the voltage across the resistor? |
| a. 30 Volts |
| b. 5/6 Volts |
| c. 6/5 Volt |