Question

Homework-Physics & Copper Media (All questions are worth two points.) element? What is the name for the smallest component of an element that still retains the basic properties of the What are the names of the three particles which can be found within the answer to the previous question? What is the nature of the force between two electrons? (circle one) attractive repulsive What is the nature of the force between an electron and a proton? (circle one) attractive repulsive In a conductor- _ of the electrons are bound to their respective atoms. (circle one) all In an insulator of the electrons are bound to their respective atoms. (circle one) all some According to Ohm's law, increasing the voltage will the amount of current flow. (circle one) increase decrease According to Ohm's law, increasing the resistance will the amount of current flow. (circle one) increase decrease A stationary charge generates what kind of field? (circle all that apply) electric magnetic electromagnetic A charge moving with constant velocity generates what kind of field? (circle all that apply) electric magnetic electromagnetic What type of electrical motion is required to generate an electromagnetic wave/field? With wavelike motion, what term denotes the number of waves per second? With wavelike motion, what term denotes the time between waves? With wavelike motion, what term denotes the distance between waves?

Answer 1

Q What is the name of the smallest component of an element that still retains the basic properties of the element

Ans. Atom

Q Name of Particles in Atom

1. Protons
2. Neutrons
3. Electrons

Q What is the nature of force between electrons

Ans Repulsive

Q Nature of force between electron and protons

Ans Attractive

Q In a conductor -------------- of the electrons are bound to their respective atoms

Ans Some

Q In an insulator -------------- of the electrons are bound to their respective atoms

Ans All

Q According to Ohms law increasing voltage will ------------- the amount of current flow

Ans Increase

Q According to Ohms law increasing resistance will ------------- the amount of current flow

Ans decrease

Q A stationary charge generate what kind of field

Ans None

Q A charge moving with constant velocity generate what kind of field

Ans Electric and magnetic field

Q What type of motion is required for electromagnetic field

Ans Charge moving with a change in velocity(Accelerating)

Q With a wave like motion what term denotes the number of waves per second

Ans Frequency

Q With a wave-like motion what term denotes the time between the waves

Ans Period

Q With a wave-like motion what term denotes the distance between waves

Ans Wavelength

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Q What is the main advantage of the digital signal over the analog signal

Ans, Unlike analog signal digital signals, are less prone to noises

Q When data signal propagates through copper media, list three ways in which signal degraded

Ans

1. Electromagnetic field
2. cross-talks with nearer cables
3. Loss of signal strength after 100 meters

Q Shielding protect data cable against

• Crosstalk with nearer cables
• Electric fields

Q Bus topology uses what kind of wiring

Ans Coaxial

Q Star topology uses what kind of wiring

Ans Twisted pair

Q A topology combines bus and star topology is

Ans Tree topology

Q Twisted pair cables use what technique to cancel out noises

Ans By twisting the pairs so that signal applied both sides equally and provide shielding to prevent static fields

Q If two computers have auto-sensing NIC then what kind of cable must use?

Ans crossover cable

Q 10/100 Mbps CT uses how many wire pairs to transmit data?

Ans 1 pair to transmit

Q 1000 Mbps CT uses how many wire pairs to transmit data?

Ans All 4 pairs used in Bidirectional manner

Q PoE Stand for

Ans Power Over Ethernet

Q What kind of tool is used to attach CAT cabling to a patch panel?

Ans Punching tool