Question 15 (3 points)
(9.40_q15) the 9 volt battery is replaced with a 12 volt battery in a circuit with 12 ω resistance. what happens to the current?

question 15 options:

the current increases.

the current is unchanged

the current decreases.

question 16 (3 points)
(9.40_q16) what is the current in a circuit with a 6 volt battery and 1.5 ω resistance?

question 16 options:

0.25 amp

0.4 amp

4 amp

9 amp

question 17 (3 points)
(9.40_q17) a 6 volt battery is replaced with a 3 volt battery in a circuit with 3 ω resistance. what happens to the current?

question 17 options:

the current increases.

the current is unchanged

the current decreases

question 18 (3 points)
(9.40_q18) what kind of relationship exists between voltage and current?

question 18 options:

a direct relationship

no relationship

an inverse relationship

question 19 (3 points)
(9.40_q19) which affects which? does voltage affect current or does current affect voltage?

question 19 options:

voltage affects current

voltage and current have no relationship with each other

current affects voltage

voltage and current both affect each other.

question 20 (3 points)
(9.40_q20) a 12 volt battery is replaced with a 6 volt battery at the same time as the resistance of a circuit is reduced from 5 ω to 2.5 ω. what happens to the current?

question 20 options:

the current increases

the current is unchanged

the current decreases

it is impossible to tell with the information provided.