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 |