Asked by Andrea
1)Several resistors are connected in series. If a battery provides constant voltage in this circuit the addition of another resistor in series
a)increases current through each resistor
b)decreases current through each resistor
c)doesn't affect the current throught any resistor
d)doesn't affect the current throught some resistors
Isn't the correct answer B since it's in series?
2)Several resistors are connected in series. If a battery provides constant voltage in this circuit the addition of another resistor in series
a)increases voltage through each resistor
b)decreases voltage through each resistor
c)doesn't affect the voltage across any resistor
d)doesn't affect the voltage across some resistors
Isn't it A? V=IR and as R increases V also increases.
a)increases current through each resistor
b)decreases current through each resistor
c)doesn't affect the current throught any resistor
d)doesn't affect the current throught some resistors
Isn't the correct answer B since it's in series?
2)Several resistors are connected in series. If a battery provides constant voltage in this circuit the addition of another resistor in series
a)increases voltage through each resistor
b)decreases voltage through each resistor
c)doesn't affect the voltage across any resistor
d)doesn't affect the voltage across some resistors
Isn't it A? V=IR and as R increases V also increases.
Answers
Answered by
drwls
1) B You are right
2) B The total voltage across the whole series circuit is the same, so there is less voltage drop in each resistor.
For each resistor, I goes down and R stays the same.
2) B The total voltage across the whole series circuit is the same, so there is less voltage drop in each resistor.
For each resistor, I goes down and R stays the same.
Answered by
bobpursley
One is correct. On the second, b would be a great answer if it read "decreases voltage <b>across</b> each resistor. Adding a resistor decreases total current, so (V=IR) means the voltage across the resistors decreases.