EBK PHYSICS FOR SCIENTISTS & ENGINEERS
5th Edition
ISBN: 9780134296074
Author: GIANCOLI
Publisher: VST
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 25, Problem 63GP
To determine
The
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
sq
4. Maximum surface resistance. Consider a square sheet of side L, thickness d, and
electrical resistivity p. The resistance measured between opposite edges of the sheet
is called the surface resistance: R = pL/ Ld = p/d, which is independent of the
area of the sheet. (R is called the resistance per square and is expected in ohms
per square, because p/d has the dimensions of ohms.) If we express p by
p=m/ne²t, then Rq=m/ndet. Suppose now that the minimum value of the
collision time is determined by scattering from surfaces of the sheet, so that
Td/v, where v is the Fermi velocity. Thus the maximum surface resistivity is
Rmvp/nd²e². Show for a monatomic metal sheet one atom thickness that
sq
Rħ/e² = 4.1k, where lkn is 10³ ohms.
sq
The amount of charge flowing through a particular conducting wire is represented by the equation q (t) = at³ + bt? +c, where a = 5 A/s?, b = 3 A/s, and c is an
unknown constant. When t = 0.9s, the voltage across the wire is measured to be 12 V. What is the resistance of the wire in Ohms?
The conductance G of an object is defined as the reciprocal
of the resistance R; that is, G = 1/R. The unit of con-
ductance is a mho (= ohm'), which is also called the
siemens (S). What is the conductance (in siemens) of an
object that draws 440 mA of current at 3.0 V?
Chapter 25 Solutions
EBK PHYSICS FOR SCIENTISTS & ENGINEERS
Ch. 25.2 - If 1 million electrons per second pass a point in...Ch. 25.2 - Prob. 1BECh. 25.3 - Return to the Chapter-Opening Question, page 651,...Ch. 25.4 - Prob. 1DECh. 25.4 - Prob. 1EECh. 25.4 - Prob. 1FECh. 25.4 - How many 60-W 120-V lightbulbs can operate on a...Ch. 25.6 - Each channel of a stereo receiver is capable of an...Ch. 25 - What quantity is measured by a battery rating...Ch. 25 - When an electric cell is connected to a circuit,...
Ch. 25 - When a flashlight is operated, what is being used...Ch. 25 - One terminal of a car battery is said to be...Ch. 25 - When you turn on a water faucet, the water usually...Ch. 25 - Can a copper wire and an aluminum wire of the same...Ch. 25 - The equation P = V2/R indicates that the power...Ch. 25 - What happens when a lightbulb burns out?Ch. 25 - If the resistance of a small immersion heater (to...Ch. 25 - Prob. 10QCh. 25 - Explain why lightbulbs almost always burn out just...Ch. 25 - Which draws more current, a 100-W lightbulb or a...Ch. 25 - Electric power is transferred over large distances...Ch. 25 - A 15-A fuse blows repeatedly. Why is it dangerous...Ch. 25 - When electric lights are operated on low-frequency...Ch. 25 - Driven by ac power, the same electrons pass back...Ch. 25 - The heating element in a toaster is made of...Ch. 25 - Is current used up in a resistor? Explain.Ch. 25 - Compare the drift velocities and electric currents...Ch. 25 - A voltage V is connected across a wire of length l...Ch. 25 - Why is it more dangerous to turn on an electric...Ch. 25 - Prob. 1PCh. 25 - Prob. 2PCh. 25 - Prob. 3PCh. 25 - Prob. 4PCh. 25 - Prob. 5PCh. 25 - Prob. 6PCh. 25 - Prob. 7PCh. 25 - Prob. 8PCh. 25 - Prob. 9PCh. 25 - Prob. 10PCh. 25 - Prob. 11PCh. 25 - Prob. 12PCh. 25 - Prob. 13PCh. 25 - Prob. 14PCh. 25 - Prob. 15PCh. 25 - (II) A rectangular solid made of carbon has sides...Ch. 25 - (III) A hollow cylindrical resistor with inner...Ch. 25 - Prob. 63GP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- In electrical theory, Ohm’s law states that I = V/R , where I is the current in amperes, V is the electromotive force in volts, and R is the resistance in ohms. In a certain circuit V = 110 and R = 50 . If V and R are to be changed by the same numerical amount, what change in them will cause I to double?arrow_forwardIf we have a material with the same electrical properties in all directions, we define its resistivity p (the Greek letter "rho") as the ratio of the magnitudes of the electric field E and the current density J: 0= In vector form, The SI unit of resistivity is one-ohm meter (1 Q-m, where the Greek letter "omega" stands for "ohm"). One ohm equals one volt per ampere (1 0 = 1 VIA). For many materials and devices, Georg Simon Ohm found that J is directly proportional to E at a given temperature. If so, p is constant and we say that the material or device follows Ohm's Law or that it is ohmic. е Calculate the resistivity of a certain metal if an electric field of 7.2 x 10-3 V/m gives a current density of 1.20 x 105 A/m2 he 6.0 x 10-8 ohm-m 7.2 103 ohm-m ware O 1.2 x 105 ohm-m izo. 0.17 x 102 ohm-m icrosoft Teams Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save and Submarrow_forwardA piece of wire of length 48.9 cm made from a material of resistivity 1.6 ohm-metre was used to create a resistor of resistance 309.6 ohms. What is the cross-sectional area of this resistor?arrow_forward
- mobile battery during a charge cycle are shown in 1.26 The voltage and current at the terminals of an auto- Fig. P1.26. a) Calculate the total charge transferred to the battery. b) Calculate the total energy transferred to the battery. Figure P1.26 v (V) bnohostib 24 Loiwollol sd lo 16 8- 8. 12 16 20 t (ks) i (A) maxi 24 16 8- the che 4 8. 12 16 20 t (ks)arrow_forwardDuring an experiment to verify Ohm's law, the voltage and resistance of a circuit are measured. [Resistance is measured in Ohm (2) and voltage in Volts (V)]. www R A +, + Battery The measured value of the voltage is V = 9.8 ± 0.4 V and that of the resistance is R = 15 ± 0.4 Q. The current through the circuit (in Ampere (A)) can be calculated using the formula, I =V/R. Calculate the, a) Current (in Ampere) = b) Fractional uncertainty in the current = C) Absolute uncertainty (in Ampere) in the surrentarrow_forwardA battery has an emf of 3V and an internal resistance of 2 ohms. If a wire with resistance R is connected to this battery and 133mA of current flows through it, what is the numerical value of R?arrow_forward
- During an experiment to verify Ohm's law, the voltage supplied and the current through a circuit are measured. [Voltage is measured in Volt (V) and current in Ampere (A)]. R Battery The measured value of the current is I = 4.7 + 0.1 A and that of the voltage is V = 10 + 0.3 V. The resistance of the circuit (in Q) can be calculated using the formula, R =V/I, Calculate the, a) Resistance (in 2) = b) Fractional uncertainty in the resistance = c) Absolute uncertainty (in 2) in the resistance=arrow_forwardDuring an experiment to verify Ohm's law, the voltage and resistance of a circuit are measured. [Resistance is measured in Ohm (2) and voltage in Volts (V)]. V wwww R + Battery The measured value of the voltage is V = 7.1 + 0.2 V and that of the resistance is R = 11 + 0.3 Q. The current through the circuit (in Ampere (A)) can be calculated using the formula, I =V/R. Calculate the, a) Current (in Ampere) = b) Fractional uncertainty in the current = c) Absolute uncertainty (in Ampere) in the current =arrow_forwardDuring an experiment to verify Ohm's law, the current and resistance of a circuit are measured. [Resistance is measured in Ohm (Q) and current in Ampere (A)]. + R A Battery The measured value of the current is I = 2.2+0.1 A and that of the resistance is R = 11+0.5 Q. The voltage applied (in Volts) can be calculated using the formula, V = IR. Calculate the, a) Voltage applied in the circuit (in Volts) = b) Fractional uncertainty in the voltage =arrow_forward
- During an experiment to verify Ohm's law, the voltage supplied and the current through a circuit are measured. [Voltage is measured in Volt (V) and current in Ampere (A)]. www R Battery The measured value of the current is I = 4.2 ± 0.2 A and that of the voltage is V = 17 + 0.3 V. The resistance of the circuit (in N) can be calculated using the formula, R = V/I, Calculate the, a) Resistance (in N) = b) Fractional uncertainty in the resistance = c) Absolute uncertainty (in N) in the resistance=arrow_forwardWhat is the resistance (in Ohms) of a wire made of a material with a resistivity of 3.3x 10-82. m if its length is 4 m and its diameter is 0.64 mm?arrow_forwardCompute the number of electrons that flow through a wire each second when the current in the wire is 0.2 A.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you