Bundle: Physics for Scientists and Engineers with Modern Physics, Loose-leaf Version, 9th + WebAssign Printed Access Card, Multi-Term
9th Edition
ISBN: 9781305932302
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 40, Problem 63AP
(a)
To determine
The radius of the filament.
(b)
To determine
The length of the filament.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A capacitor of capacitance C=40 µF is first charged by a battery of V=9 volts.
To reverse the voltage on the capacitor, how long must a current of constant
intensity I=3 A pass from the positive to the negative plate of the capacitor?
A wire has a current density of 7.77 x 10° A/m“. If the cross-sectional area of the wire is 3.57 mm2, what current I does
the wire carry?
I =
2773.9
Incorrect
With this current, how much time t is required for 4.39 x 1040 electrons to pass any point on the wire?
t =
0.02532
Incorrect
5. An electron orbiting an atomic nucleus forms its own kind of current loop. For a hydrogen atom in the lowest energy
state, a single electron orbits the nucleus with a radius of 52.9 pm (5.29 × 10-11 nm) and a speed of about 2.2 x 106
m/s.
X
Z
(a) Conventional current measures the amount of charge passing a certain point per unit time: I =
In this
case, Qis the electron charge, and At is the time it takes the electron to complete one full orbit. Using this
information, what is the magnitude of the conventional current in the hydrogen atom?
Answer: I = 1.05 mA.
(b) What is the magnetic field (both magnitude and direction) at a distance of 5.29 nm along the axis of the atom,
at the point indicated?
Answer: -1.25 × 10-5 T 2
Chapter 40 Solutions
Bundle: Physics for Scientists and Engineers with Modern Physics, Loose-leaf Version, 9th + WebAssign Printed Access Card, Multi-Term
Ch. 40.1 - Prob. 40.1QQCh. 40.2 - Prob. 40.2QQCh. 40.2 - Prob. 40.3QQCh. 40.2 - Prob. 40.4QQCh. 40.3 - Prob. 40.5QQCh. 40.5 - Prob. 40.6QQCh. 40.6 - Prob. 40.7QQCh. 40 - Prob. 1OQCh. 40 - Prob. 2OQCh. 40 - Prob. 3OQ
Ch. 40 - Prob. 4OQCh. 40 - Prob. 5OQCh. 40 - Prob. 6OQCh. 40 - Prob. 7OQCh. 40 - Prob. 8OQCh. 40 - Prob. 9OQCh. 40 - Prob. 10OQCh. 40 - Prob. 11OQCh. 40 - Prob. 12OQCh. 40 - Prob. 13OQCh. 40 - Prob. 14OQCh. 40 - Prob. 1CQCh. 40 - Prob. 2CQCh. 40 - Prob. 3CQCh. 40 - Prob. 4CQCh. 40 - Prob. 5CQCh. 40 - Prob. 6CQCh. 40 - Prob. 7CQCh. 40 - Prob. 8CQCh. 40 - Prob. 9CQCh. 40 - Prob. 10CQCh. 40 - Prob. 11CQCh. 40 - Prob. 12CQCh. 40 - Prob. 13CQCh. 40 - Prob. 14CQCh. 40 - Prob. 15CQCh. 40 - Prob. 16CQCh. 40 - Prob. 17CQCh. 40 - The temperature of an electric heating element is...Ch. 40 - Prob. 2PCh. 40 - Prob. 3PCh. 40 - Prob. 4PCh. 40 - Prob. 5PCh. 40 - Prob. 6PCh. 40 - Prob. 7PCh. 40 - Prob. 8PCh. 40 - Prob. 9PCh. 40 - Prob. 10PCh. 40 - Prob. 11PCh. 40 - Prob. 12PCh. 40 - Prob. 14PCh. 40 - Prob. 15PCh. 40 - Prob. 16PCh. 40 - Prob. 17PCh. 40 - Prob. 18PCh. 40 - Prob. 19PCh. 40 - Prob. 20PCh. 40 - Prob. 21PCh. 40 - Prob. 22PCh. 40 - Prob. 23PCh. 40 - Prob. 25PCh. 40 - Prob. 26PCh. 40 - Prob. 27PCh. 40 - Prob. 28PCh. 40 - Prob. 29PCh. 40 - Prob. 30PCh. 40 - Prob. 31PCh. 40 - Prob. 32PCh. 40 - Prob. 33PCh. 40 - Prob. 34PCh. 40 - Prob. 36PCh. 40 - Prob. 37PCh. 40 - Prob. 38PCh. 40 - Prob. 39PCh. 40 - Prob. 40PCh. 40 - Prob. 41PCh. 40 - Prob. 42PCh. 40 - Prob. 43PCh. 40 - Prob. 45PCh. 40 - Prob. 46PCh. 40 - Prob. 47PCh. 40 - Prob. 48PCh. 40 - Prob. 49PCh. 40 - Prob. 50PCh. 40 - Prob. 51PCh. 40 - Prob. 52PCh. 40 - Prob. 53PCh. 40 - Prob. 54PCh. 40 - Prob. 55PCh. 40 - Prob. 56PCh. 40 - Prob. 57PCh. 40 - Prob. 58PCh. 40 - Prob. 59PCh. 40 - Prob. 60APCh. 40 - Prob. 61APCh. 40 - Prob. 62APCh. 40 - Prob. 63APCh. 40 - Prob. 64APCh. 40 - Prob. 65APCh. 40 - Prob. 66APCh. 40 - Prob. 67APCh. 40 - Prob. 68APCh. 40 - Prob. 69APCh. 40 - Prob. 70APCh. 40 - Prob. 71APCh. 40 - Prob. 72CPCh. 40 - Prob. 73CPCh. 40 - Prob. 74CPCh. 40 - Prob. 75CPCh. 40 - Prob. 76CP
Knowledge Booster
Similar questions
- Flying Circus of Physics Exploding shoes. The rain-soaked shoes of a person may explode if ground current from nearby lightning vaporizes the water. The sudden conversion of water to water vapor causes a dramatic expansion that can rip apart shoes. Water has density 1000 kg/m3 and requires 2256 kJ/kg to be vaporized. If horizontal current lasts 2.26 ms and encounters water with resistivity 154 Q-m, length 14.0 cm, and vertical cross-sectional area 15.2 x 10-5 m², what average current is required to vaporize the water? Number i Unitsarrow_forward1. A current passing through a resistance of 7 N decreases linearly with time (i.e. i = at+b where a and b are constants) to zero in a time interval of 0.5 ms and a total charge of 0.2 mC passes through resistance throughout this process. (a) What is the initial value of the current in amperes? b) What is the total energy, in joules, dissipated on the resistance in this process.arrow_forward2*10^20 electrons flows through a cross section of an iron wire of diameter d=5.7mm in time t=13 s. What is the electron drift speed?arrow_forward
- A ceramic capacitor has a value of C=10,000 pF. The capacitor consists of a dielectric disc between two paralell metal disc plates. The dielectric disc has a relative permittivity of 40 and a conductivity of 10-12 S/m. The diameter of the disc plates is 1 cm. The voltage across the plates is 100 V. Find the leakage current density in the dielectric in micro Amperes per square meter. Round off your answer to one decimal.arrow_forwardA faculty administration wants to change all fluorescent lights in rooms, labs, and classrooms. There are 250 lambs. A regular bulb is 5 TL and a LED bulb is 45 TL. A regular bulb consumes 40 Watts electricity whereas a LED bulb consumes 6 Watts. If electricity price is 0.80 TL per kilowatt-hour, how many days later will LED bulbs be more economical. Assume average working time (of all bulbs) is 6 hours. Note that the time for average life of the bulbs is 3 years.arrow_forwardA copper wire of length 10 cm and a cross-sectional area of 0.4 mm^2 The resistance of the wire is 2 0.5 The wire is connected to a source with a voltage of 10 V What is the kinetics, given that the density of conduction electrons for copper is 8.5x * 1O ^ 28m^-3 a = 0.94x * 10^ - 4 b = 8.5x * 10^4 C = 0.5x * 10 - 5 d = 0.36x * 10^ - 4arrow_forward
- What is the drift velocity in a 10.3 cm long section of wire that is carrying 624 Amps?arrow_forward1%70 ll. I. quiz.pdf Group A Let J=10y²zax – 2x²yay+2x²zāz a) The total current crossing the surface y=2, 1arrow_forwardA 40 WW (120 VV) lightbulb has a tungsten filament of diameter 0.040 mmmm . The filament's operating temperature is 1500∘C∘C. How long is the filament? Express your answer with the appropriate units.arrow_forwardOne of the highest power lasers in the world sits on a table in the General Research Lab Building at Colorado School of Mines. It emits pulses that last approximately 19 fs, and contain 90 mJ of energy. "fs" indicates a femtosecond, which is 10−15 seconds. When the beam exits the laser, it is approximately 30 mm in diameter. Molecules begin to ionize when applied electric fields reach approximately 8.680e+09 V/m. To what diameter must the beam be focused to reach this electric field strength?arrow_forwardB9arrow_forward1. The current passing through a conductor is described by I(t) = I。 e¯t/¹. If lo 2A and T = 0.5 s, how many electrons flow through the conductor during the first 3 seconds? Take e 1.6 × 10-¹⁹ C.arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
Recommended textbooks for you
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning