n a scanning electron microscope, the scanning (moving the bean on the sample) is made elect one: O a. none of them O b. By changing the voltage for accelerating the electron O c. By moving the tip of electrons O d. By using an electromagnet

n a scanning electron microscope, the scanning (moving the bean on the sample) is made elect one: O a. none of them O b. By changing the voltage for accelerating the electron O c. By moving the tip of electrons O d. By using an electromagnet

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter28: The Atom

Section: Chapter Questions

Problem 62A

See similar textbooks

Related questions

Q: (a) Find the number of electrons that flow past a given point in the wire in 11.1 minutes.…

A: a) The current flowing through a point can be represented as, Here, q and t represent the charge…

Q: 1) A proton moves in the +z direction after being accelerated from rest through a potential…

A: Let e, v, E, B, and V denote the magnitude of the proton’s charge, velocity, electric field,…

Q: a)Two 2.0 m long parallel wires, P and Q are separated by a distance of 20 mm, carrying currents of…

A: Length, L = 2 mDistance, d = 0.02 m Let current be denoted by I. I1 = 5.5 AI2 = 2.2 A Note:…

Q: A) A transformer for a transistor radio reduces 120 V ac to 9 V ac (Such a device also contains…

A: Given: Transformer reduces 120 V to 9 V ( both AC ). Thus, voltage developed across primary coil,…

Q: (a) Determine the radius of their circular path. (b) Repeat this calculation for uranium-235 ions.…

A: Given data: The charge on electro is: q = 1.6×10-19 C The mass of uranium 238 is: m =3.95×10-25 kg…

Q: B) What is the current, in units.of.miliamperes in the rod?

Q: (a) What is an electric field line? How can we use electric field lines in order to determine…

A: a) Electric field line: It is an imaginary line in an empty space so that its tangent at any point…

Q: (c) The pictures below show iron filling images of three different conductor arrangements. Label the…

Q: (a) A DC power line for a light-rail system carries 1000 Aat an angle of 30.0o to the Earth’s 5.00 X…

A: The force on the line is given by F=LIB sinθ

Q: a. A long straight wire carries a current of 4 A. An electron is traveling in the vicinity of the…

A: Given: The current in the wire is I=4 A The charge of the electron e=1.6×10-19 C The speed of the…

Q: (a) An electron starts at rest and accelerates through an electric field established by a set of…

Q: n a conducting wire, 3.17C of charge flow every 8.5 seconds. What is the electric current in this…

Q: b) The current is suddenly turned off. How long does it take for the potential difference across…

Q: A. What is electromagnetism? B. How does electromagnetism affect the earth's magnetic field? C.…

A: A) Electromagnetism is a branch of physics dealing with electromagnetic forces that occur in between…

Q: a)Explain why a material exhibits ferromagnetic behavior ? b)Draw a magnetic induction versus…

A: Ferromagnetism is a phenomenon where materials attain permanent magnetism. The magnetism in…

Q: Įn a particular cathode ray tube, the measured beam current is 30 µA. How many electrons strike the…

A: Given Current is I =30×10^-6 A Time is t=10 s

Q: For a constant magnetic field (constant current), vary the velocity of the electron (by varying…

A: Given relation for qm qm=constantI2×Vr2

Q: n the figure, part of a long insulated wire carrying current i = he x-component, (b) the…

A: Given:- A long insulated wire carrying current i = 7.42 mA = 7.42 x 10-3 A The radius of the…

Q: a) What is the speed of a supersonic aircraft with a 17.0 -m wingspan, if it experiences a 1.60 -V…

A: Solution: Given that L = 17 m ε Voltage = 1.6 V B = 8x10-5 T

Q: a) What would the Hall voltage be (in µV) if a 2.40 T field is applied across a 13-gauge copper wire…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A. Find the speed of the proton. B. What is the radius r of the circle in which the proton travels…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: n nucleus which has a net positive charge) is moving due at is directed due north. Which one of the…

Q: (a) The hot and neutral wires supplying DC power to a light-rail commuter train carry 800 A and are…

A: Given The current carry by the hot wire is I1 = 800 A. The current carry by the neutral wire is I2…

Q: A large cyclotron directs a beam of He++nuclei onto a target with a beam current of 0.250 mA. (a)…

Q: a) Explain why there is attraction between two current-carrying wires whose currents are in the same…

A: Given:- I =4.0 A length of the wires L= 2.0 m Distance between the wire d=15 cm Find:- why there…

Q: * (a) An electron, accelerated to an energy of 100.0 eV, enters a region with a uniform magnetic…

A: A) energy of the electron = 100 eV Magnetic field (B) = 0.015 T , along + x axis The direction of…

Q: b) Explain briefly the meaning of 'motor effect'. Choose ONE device used in daily life which applies…

A: Given : To explain motor effect and choose a device in every day life that works using this effect…

Q: (a) A 200-turn circular loop of radius 50.0 cm is vertical, with its axis on an east-west line. A…

A: It is given that,

Q: (a) A 200-turn circular loop of radius 50.0 cm is vertical, with its axis on an east-west line. A…

A: Given Data: The radius of the loop is, r=50 cm=0.50 m The current is, I=100 A The magnetic field…

Q: (a) A physicist is constructing a solenoid. She has a roll of insulated copper wire and a power…

A: Given : dsolenoid=10 cm=0.1 m Length of Solenoid=l=90 cm=0.9 m dwire=0.1 cm=0.001 m ρ=1.70x10-8…

Q: O Part 1: Mass Spectrometer As shown below, a charged particle is moving through a region that has a…

A: Clearly the electric field will exert a force to right side. So magnetic force much be to the left…

Q: n electric device draws 6.5 A at 240 V. If the voltage drops by 15%, what will be the new current? O…

A: Given Voltage is V= 240 V Current draws in the device is I=6.5 A The resistance of an elctrical…

Q: Calculate the intensity of electric current passing through the resistance of 4ohms. b) Calculate…

Q: (a) What is the direction of the force on a wire carrying a current due east in a location where the…

A: Given, B=3.00×10−5 T I=20A We know, Direction of I and L same The direction of the force will be…

Q: (a) A velocity selector consists of electric and magnetic fields described by the expressions E = Ek…

Q: A beam of highly energetic protons emerges from a cyclotron. Can you assume that there is a magnetic…

A: Given:- a) A beam of highly energetic protons emerges from a cyclotron. Find:- Can you assume that…

Q: d) Along with the external magnetic field, if we now apply an external electric field on the charged…

A: Force on charge particle in a magnetic field is given by F⇀ = q(V⇀ x B⇀) Here, F = force experienced…

Q: n electron enters a large solenoid at a 7.2 angle the axis. Part A If the field is a uniform…

Q: when the charges in the rod are in equilibrium, what is the magnitude E of the electric field…

A: Motional emf

Q: A) Explain the unification of electrical effects and magnetic effects into electromagnetism. Use…

A: Given : To answer the questions.

Q: Electrons flow through a 2.5-mm-diameter aluminum wire at 1.3×10-4 m/s Part A How many electrons…

Concept explainers

Magnetic Force

A magnetic force arises when a charged particle or a current-carrying conductor is placed in a magnetic field. It is created because of the movement of the charged particles.

Question

In a scanning electron microscope, the scanning (moving the bean on the sample) is made
Select one:
O a. none of them
O b. By changing the voltage for accelerating the electron
O c. By moving the tip of electrons
O d. By using an electromagnet

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

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

List all the possible values of s and msfor an electron. Are there particles for which these values are different? The same?
Some satellites use nuclear power. (a) If such a satellite emits a 1.00-W flux of rays having an average energy of 0.500 MeV, how many are emitted per second? (b) These rays affect other satellites. How far away must another satellite be to only receive one ray per second per square meter?
Some television tubes are CRTs. They use an approximately 30-kV accelerating potential to send electrons to the screen, where the stimulate phosphors to emit the light that forms the pictures we watch. Would you expect x rays also to be treated?
Integrated Concepts The electric and magnetic forces on an electron in the CRT in Figure 30.7 are supposed to be in opposite directions. Verify this by determining the direction of each force for the situation shown. Explain how you obtain the directions (that is, identify the rules used).
What two pieces of evidence allowed the first calculation of me, the mass of the electron? (a) The ratios qe/me and qp/mp. (b) The values of qe and EB. (c) The ratio qe/me and qe. Justify your response.
Engineers are frequently called on to inspect and, if necessary, repair equipment in medical hospitals. Suppose that the PET system malfunctions. After inspecting the unit, you suspect that one of the PET photon detectors is misaligned. To test your theory you position one detector at die location (r,,)=(1.5,45,30)relative to a radioactive test sample at the center of the patient bed. (a) If the second photon detector is properly aligned where should it be located? (b) What energy reading is expected?
Use the laws of conservation of momentum and energy to explain how a shape charge can direct most of the energy released in an explosion in a specific direction. (Note that this is similar to the situation in guns and cannonsmost of the energy goes into the bullet.)
Coulomb's force law states that the force between two charged particles is: F=kQqr2. Use this expression to determine the potential energy function.
Integrated Concepts Particles called muons exist in cosmic rays and can be created in particle accelerators. Muons are very similar to electrons, having the same charge and spin, but they have a mass 207 times greater. When muons are captured by an atom, they orbit just like an electron but with a smaller radius, since the mass in aB=h242mekqe2=0.5291010m is 207 me. (a)Calculate the radius of the n=1 orbit for a muon in a uranium ion (Z=92). (b) Compare this with the 7.5-fm radius of a uranium nucleus. Note that since the muon orbits inside the electron, it falls into a hydrogen-like orbit. Since your answer is less than the radius of the nucleus, you can see that the photons emitted as the muon falls into its lowest orbit can give information about the nucleus.
Integrated Concepts Find the radius of curvature of the path of a 25.0-Mev proton moving perpendicularly to the 1.20T field of a cyclotron.
Why don't we notice quantization in everyday events?
Using the given charge-to-mass ratios for electrons and protons, and knowing the magnitudes of their charges are equal, what is the ratio of the proton's mass to the electron's? (Note that since the charge-to-mass ratios are given to only three-digit accuracy, your answer may differ from the accepted ratio in the fourth digit.)