3- Why does the resistivity of superconductors become zero?

Q: → -{e + Ni 60 Ni 28

A:

Q: 19-5 A typical Pb-acid automobile battery weighs 20 kg. Compare the amount of energy it stores when…

A: Given : Weight of Pb acid battery = 20kg

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A:

Q: 4.) (Based on Neamen - Review Question 7.6) - Why does a capacitance exist in a reverse- biased pn…

A:

Q: What is the difference between conventional current and electron current? What do they have in…

A: Conventional Current- The flow of positive charges in a circuit from positive terminal to negative…

Q: Electrons in silicon have a mobility of 1000 cm' N-sec. The electric field is applied to make the…

A: mobility of electron, μe=1000cm2/V-sμe=0.1m2/V-sVelocity of electron,vd=3×107 cm/svd=3×105…

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A: 3. Introduction: Zener diode is a special type of diode which allows current to flow backward when a…

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A:

Q: 2. Design the voltage regulator circuit of Fig. 7-11 to maintain VL at 12 V across RL with Vi that…

A:

Q: Two straight, parallel, superconducting wires 7.06 mm apart carry equal currents of 12958 A in…

A: As

Q: -1 -1 We would like to produce a 1000 ohm resistor from boron carbide having electrical conductivity…

A:

Q: Explain the difference between conductor and insulators. Give at least 3 examples of each?

A:

Q: 10. What are the emitter, collector, and base in a transistor?

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Q: 10. On which level within this parallel plate apparatus would an electron have the most potential…

A: Introduction: The given system forms the parallel plate capacitor whose energy can be obtained as…

Q: List the differences and similarities between conductors and insulators?

A: The difference between conductor and insulator are as follows:- 1) The main difference between them…

Q: What are Superconductors? Give examples.

A: Superconductors are the conductors that have the ability to conduct electricity with zero…

Q: 3- What will be the diode resistance if the current in the circuit is zero? 4-Using the ideal diode…

A: a) As the current in the circuit is zero, there will be no flow of charge. So, definitely there will…

Q: Don't copy from anywhere. Show your own work.

A: When there is no external voltage, the conduction electrons in the n region randomly drift in all…

Q: Explain how eddy currents are created in metals

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Q: 5- Since most of the current carriers are holes, silicon doped in this way is called: b) n-type c)…

A:

Q: Two straight, parallel, superconducting wires 2.58 mm apart carry equal currents of 12293 A in…

A:

Q: 8. In the complete diode model, a. the barrier potential is taken into account b. the forward…

A: The complete diode model in forward and reverse bias is shown in the following figure :    rd' is…

Q: 14 - The electron volt (eV) is equal to? O A) 1.60 x 10-19 J

A: One electron volt is defined as a unit of energy where it is the work done on an electron in…

Q: 32. Which of the following statements about a bipolar transistor is true? A The collector current is…

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Q: Explain what an insulator is?

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Q: B=i-3)-k A = 3i - j+k tA-B+č=0 l (C) asiall asa

A: When we add two or more vectors we add x component to x ,y component to y  and z component to z.

Q: What happens to an electron when voltage is zero and why??

A:

Q: 3.The maximum electric field strength át the center of the depletion layer increases with in the…

A: 3) Decreasing 4) weak

Q: 157. The barrier potential of a p-n junction depends on : a. Type of semiconductor material b.…

A: Barrier potential in between the p-n type of diode is depends upon doping of minority charge  and on…

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Q: 5. Determine the current I for each of the configurations of Fig. 2.155 using the approximate…

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Q: 2. Is it necessary to add a series resistance with the diode or not? Explain why?

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Q: 13- The advantage of PIN diode is a. Higher resistivity of intrinsic region b. Higher powers handled…

A: The advantage of PIN diode is higher resistivity of intrinsic region, higher powers handled, easier…

Q: 2. If the conductivity of the pure Germanium change with temperature according the fol- lowing…

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Q: 15- Similar to the glow discharge, the large part of the total voltage in arc exist in the cathode…

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Q: A transformer for a transistor radio reduces 120 V ac to 9.0 V ac. The secondary contains 30 turns…

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Q: The junction is in thermal equilibrium when the

A: When the temperature of two objects is the same.

Q: A gas discharge tube glows when a high voltage is applied to it. Explain this statement?

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A: To solve the given question, we will find the area of each transistor in each case and then we will…

Q: Q2: The movement of free electrons in the is called electron current ------ b) Conduction band d)…

A:

Q: 6.) Why are metals typically good electrical conductors? a. Metals have excellent insulator…

A: Metals are typically good electrical conductors because they have electrons that can flow easily…

Q: 5-In ideal model the voltage across the terminals diode is...

A: For real diode volltage drop across terminals are  0.3 V to 0.7 V depending on elements used in…

Q: 2.) Is the total concentration of current carriers (free electrons and holes) in a semicon- ductor…

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Q: 1-At room temperature (VT = 26) what will be the approximate value of resistance diode when n=1 and…

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Q: 4-Using the ideal diode model of a silicon diode and taking E=10 V and R=1k, what is the value of…

A: Using the approximate equivalent model    silicon diode (vr =0.7 V) E=10V, R=1K ohm We have to use…

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.