AP Free Response Question
2002 B3
Printer Friendly Version
Two light bulbs, one rated 30 W at 120 V and another rated 40 W at 120 V, are arranged in two different circuits.
(a) The two bulbs are first connected in parallel to a 120-V source.
i. Determine the resistance of the bulb rated 30 W and the current in it when it is connected in this circuit.
ii. Determine the resistance of the bulb rated 40 W and the current in it when it is connected in this circuit.
(b) The bulbs are now connected in series with each other and a 120-V source.
i. Determine the resistance of the bulb rated 30 W and the current in it when it is connected in this circuit.
ii. Determine the resistance of the bulb rated 40 W and the current in it when it is connected in this circuit.
(c) Number the bulbs in each situation described, in order of their brightness.
(1 = brightest, 4 = dimmest)
30 W bulb in the parallel circuit
40 W bulb in the parallel circuit
30 W bulb in the series circuit
40 W bulb in the series circuit
(d) Calculate the total power dissipated by the two bulbs in each of the following cases.
i. The parallel circuit
ii. The series circuit
Topic Formulas
Description
Published Formula
capacitors in parallel
capacitors in series
electric current
Joule's Law
Ohm's Law
resistance in parallel
resistance in series
resistivity
Related Documents
Lab:
CP -
Series and Parallel Circuits
Labs -
Parallel and Series Circuits
Labs -
RC Time Constants
Labs -
Resistance and Resistivity
Labs -
Resistance, Gauge, and Resistivity of Copper Wires
Labs -
Telegraph Project
Labs -
Terminal Voltage of a Lantern Battery
Labs -
Wheatstone Bridge
Resource Lesson:
RL -
A Comparison of RC and RL Circuits
RL -
Ampere's Law
RL -
An Introduction to DC Circuits
RL -
Capacitors and Dielectrics
RL -
Dielectrics: Beyond the Fundamentals
RL -
Electricity and Magnetism Background
RL -
Filaments
RL -
Kirchhoff's Laws: Analyzing Circuits with Two or More Batteries
RL -
Kirchhoff's Laws: Analyzing DC Circuits with Capacitors
RL -
Magnetic Field Along the Axis of a Current Loop
RL -
Magnetism: Current-Carrying Wires
RL -
Meters: Current-Carrying Coils
RL -
Parallel Plate Capacitors
RL -
RC Time Constants
RL -
Torque on a Current-Carrying Loop
Worksheet:
APP -
The Circuit Rider
APP -
The Cycle Shop
CP -
DC Currents
CP -
Electric Power
CP -
Ohm's Law
CP -
Parallel Circuits
CP -
Power Production
CP -
Power Transmission
CP -
RIVP Charts #1
CP -
RIVP Charts #2
CP -
Series Circuits
NT -
Brightness
NT -
Light and Heat
NT -
Parallel Circuit
NT -
Series Circuits
NT -
Shock!
WS -
Capacitors - Connected/Disconnected Batteries
WS -
Combinations of Capacitors
WS -
Introduction to R | I | V | P Charts
WS -
Kirchhoff's Laws: DC Circuits with Capacitors
WS -
Kirchhoff's Laws: Sample Circuit
WS -
Resistance, Wattage, and Brightness
TB -
34A: Electric Current
TB -
35A: Series and Parallel
TB -
Advanced Capacitors
TB -
Basic Capacitors
TB -
Basic DC Circuits
TB -
Multiple-Battery Circuits
TB -
Textbook Set #6: Circuits with Multiple Batteries
CB-ETS
Copyright © 1970-2022
All rights reserved.
Used with
permission
Mainland High School
Daytona Beach, FL 32114