FREE Answers for Conceptual Physics C2009 Guided Reading & Study Workbook Se
Problem 1A:
What condition is necessary for the flow of heat? What analogous condition is necessary for the flow...Problem 3A:
What condition is necessary for the sustained flow of water in a pipe? What analogous condition is...Problem 4A:
What is electric current?Problem 5A:
What is an ampere?Problem 6A:
What is voltage?Problem 10A:
What is electric resistance?Problem 12A:
What is Ohms law?Problem 13A:
If the resistance of a circuit remains constant while the voltage across the circuit decreases to...Problem 14A:
If the voltage impressed across a circuit is constant but the resistance doubles, what change occurs...Problem 15A:
How does wetness affect the resistance of your body?Problem 18A:
Distinguish between DC and AC. Which is produced by a battery and which is usually produced by a...Problem 19A:
A diode converts AC to pulsed DC. What electric device smooths the pulsed DC to a smoother DC?Problem 21A:
What is a typical 'drift' speed of electrons that make up a current in a typical DC circuit? In a...Problem 23A:
What is power?Problem 24A:
Which of these is a unit of power and which is a unit of electrical energy: a watt, a kilowatt, and...Problem 26A:
Rank the circuits below according to the brightness of the bulbs, from brightest to dimmest.Problem 27A:
The bulbs shown below are identical. An ammeter is placed in different branches, as shown. Rank the...Problem 28A:
All bulbs are identical in the circuits shown below. An ammeter is connected next to the battery as...Problem 29A:
In each of the circuits shown below, a voltmeter is connected across a bulb to measure the voltage...Problem 30A:
All bulbs are identical in the circuit shown to the right. The circuit consists of three parts: (A)...Problem 32A:
Calculate the current of a lightning bolt that delivers a charge of 35 coulombs to the ground in a...Problem 33A:
Calculate the current in a toaster that has a heating element of 14 ohms when connected to a 120-V...Problem 34A:
Calculate the current in the coiled heating element of a 240-V stove. The resistance of the element...Problem 35A:
Electric socks, popular in cold weather, have a 90-ohm heating element that is powered by a 9-volt...Problem 36A:
How much current moves through your fingers (resistance: 1200 ohms) if you touch them to the...Problem 37A:
Calculate the power supplied to an electric blanket that carries 1.20 A when connected to a 120-V...Problem 38A:
Is this label on a household product cause for concern? 'Caution: This product contains tiny...Problem 39A:
Do an ampere and a volt measure the same thing, or different things? What are those things, and...Problem 40A:
What happens to the brightness of light emitted by a light bulb when the current in it increases?Problem 41A:
In terms of heating, why are thick wires rather than thin wires used to carry large currents?Problem 42A:
Why is it important that the resistance of an extension cord be small when it is used to power an...Problem 43A:
Why will an electric drill operating on a very long extension cord not rotate as fast as one...Problem 44A:
Your tutor tells you that an ampere and a volt really measure the same thing, and the different...Problem 45A:
Does more current flow out of a battery than into it? Does more current flow into a lightbulb than...Problem 46A:
A simple lie detector consists of an electric circuit, one part of which is part of your body. A...Problem 47A:
Only a small fraction of the electric energy fed into a common lightbulb is transformed into light....Problem 48A:
Will a lamp with a thick filament draw more current or less current than a lamp with a thin filament...Problem 50A:
Will the current in a lightbulb connected to 220 V be more or less than when the bulb is connected...Problem 51A:
Which will do more damage—plugging a 110-V toaster into a 220-V circuit or plugging a 220-V...Problem 52A:
If current of one- or two-tenths of an ampere were to flow into one of your hands and out the other,...Problem 53A:
What is the effect on current if both the voltage and the resistance are doubled? If both are...Problem 54A:
In 60-Hz alternating current, how many times per second does an electron change its direction? (Dont...Problem 55A:
If electrons flow very slowly through a circuit, why doesnt it take a noticeably long time for a...Problem 56A:
What unit is represented by (a) joule per coulomb, (b) coulomb per second, and (c) watt-second?Problem 57A:
Two lightbulbs designed for 120-V use are rated at 40 W and 60 W. Which light-bulb has the greater...Problem 58A:
A cars headlights dissipate 40 W on low beam and 50 W on high beam. Is there more or less resistance...Problem 59A:
How much current, in amperes, is in a lightning stroke that lasts 0.05 second and transfers 100...Problem 60A:
How much charge flows in a pocket calculator each minute when the current is 0.0001 ampere?Problem 62A:
Use the relationship power=currentvoltage to find out how much current is drawn by a 1200-watt hair...Problem 63A:
The current driven by voltage V in a circuit of resistance R is given by Ohms law, I=V/R. Show that...Problem 64A:
Use the equation just derived and show that when a device in a 120-V circuit draws a current of 20...Problem 65A:
The power of an electric circuit is given by the equation P=IV. Use Ohms law to express V and show...Problem 66A:
An electric heater has a heating element of resistance 12. It is plugged into a wall socket that...Problem 67A:
Calculate the resistance of the filament in a lightbulb that carries 0.4 A when 3.0 V is impressed...Problem 68A:
A lightbulb is marked ' 120 V, 60 W.' a. What current flows through the filament when the bulb is...Problem 69A:
A microwave oven is marked '120 V, 1100 w.' a. How much current does the oven draw? b. To heat 380 g...Problem 70A:
A typical car headlight may put out 50 watts at 12 volts. a. Show that 4.2 A is drawn by the...Problem 71A:
Suppose that an ammeter inserted in series in a toaster circuit shows that the current is 5.0 amps...Problem 72A:
The wattage marked on a lightbulb is not an inherent property of the bulb but depends on the amount...Problem 73A:
The resistance of a certain wire is 10 ohms. a. What would the resistance of the same wire be if it...New
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Browse All Chapters of This Textbook
Chapter 1 - About ScienceChapter 2 - Mechanical EquilibriumChapter 3 - Newton's First Law Of Motion-interiaChapter 4 - Linear MotionChapter 5 - Projectile MotionChapter 6 - Newton's Second Law Of Motion-force And AccelerationChapter 7 - Newton's Third Law Of Motion- Action And ReactionChapter 8 - MomentumChapter 9 - EnergyChapter 10 - Circular Motion
Chapter 11 - Rotational EquilibriumChapter 12 - Rotational MotionChapter 13 - Universal GravitationChapter 14 - Satellite MotionChapter 15 - Special Relativity-space And TimeChapter 16 - Relativity-momentum, Mass, Energy, And GravityChapter 17 - The Atomic Nature Of MatterChapter 18 - SolidsChapter 19 - LiquidsChapter 20 - GasesChapter 21 - Temerpature Heat, And ExpansionChapter 22 - Heat TranferChapter 23 - Change Of PhaseChapter 24 - ThermodynamicsChapter 25 - Vibrations And WavesChapter 26 - SoundChapter 27 - LightChapter 28 - ColorChapter 29 - Reflection And RefractionChapter 30 - LensesChapter 31 - Diffractioon And InterferenceChapter 32 - ElectrostaticsChapter 33 - Electric Fileds And PotentialChapter 34 - Electric CurrentChapter 35 - Electric CircuitsChapter 36 - MagnetismChapter 37 - Electromagnetic InductionChapter 38 - The Atom And The QuantumChapter 39 - The Atomic Nucleus And RadioactivityChapter 40 - Nuclear Fission And Fusion
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