d) How does the current in circuit B compare to circuit A? e) How is current (I) related to the resistance of the circuit? f) If the resistance of a circuit is quadrupled, by what factor does the current change? g) Fill out the table for the circuit diagramed at the right.

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter29: Direct Current (dc) Circuits
Section: Chapter Questions
Problem 64PQ: Ralph has three resistors, R1, R2, and R3, connected in series. When connected to an ideal emf...
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In a series circuit there is just one path so the charge flow is constant everywhere (charge is
not lost or gained). Circuit B was made by adding 2 more identical resistors in series to
circuit A.
R
R
I= 3 A
R
R
Circuit A
Circuit B
Figure 14.3 Series Circuit
d) How does the current in circuit B compare to circuit A?
e) How is current (I) related to the resistance of the circuit?
f) If the resistance of a circuit is quadrupled, by what factor does the current change?
g) Fill out the table for the circuit diagramed at the right.
Transcribed Image Text:In a series circuit there is just one path so the charge flow is constant everywhere (charge is not lost or gained). Circuit B was made by adding 2 more identical resistors in series to circuit A. R R I= 3 A R R Circuit A Circuit B Figure 14.3 Series Circuit d) How does the current in circuit B compare to circuit A? e) How is current (I) related to the resistance of the circuit? f) If the resistance of a circuit is quadrupled, by what factor does the current change? g) Fill out the table for the circuit diagramed at the right.
Voltage
(V)
Circuit
Current
Resistance
Power
R2
Position
(A)
(ohm)
(W)
R,
R3
10.0 ohms
2
20.0 ohms
3
30.0 ohms
Total
6.00V
Figure 14.4 Series
h) Is there a relationship between resistance and voltage drop in a series circuit? If so, state
it.
i) If the resistors were light bulbs, explain in terms of charge flow (current) and energy per
charge (voltage) which bulb would be brightest / dimmest.
Transcribed Image Text:Voltage (V) Circuit Current Resistance Power R2 Position (A) (ohm) (W) R, R3 10.0 ohms 2 20.0 ohms 3 30.0 ohms Total 6.00V Figure 14.4 Series h) Is there a relationship between resistance and voltage drop in a series circuit? If so, state it. i) If the resistors were light bulbs, explain in terms of charge flow (current) and energy per charge (voltage) which bulb would be brightest / dimmest.
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