Materials in which electric charges (electrons) can move very easily are ____________. a. semiconductors b. good conductors c. non ohmic materials d. insulators Clear my choice
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Materials in which electric charges (electrons) can move very easily are ____________.
semiconductors
good conductors
insulators
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- Conduc-Thor-s. Thor has two square prism conductors that are made of the same ohmic material and with properties indicated below. Conductor Length | Cross-Section Side Length Alpha L Beta L/2 s/4 Suppose both conductors are subject to the same potential difference AV across their length while keeping their temperatures fixed. Which of the following is the correct relation between the electric currents, Ia and IB, through Alpha and Beta? O A. Ia = 8IB O B. 8Ia = Ig O. Ia = 4I8 O D. 4Ig = Ig Clear my choiceIs it possible to explain the difference between a conductor and an insulator by referring to a semiconductor? A graph would be a great way to illustrate your arguments.Metals are bonded by metallic bond, that is protons in a sea of electrons which give them their characteristic conductivity. If the electric current flows from one end to the other end using a copper wire to bridge the gap, the extra electron given through the electric current will cause the sea of electrons in the copper to? A. The electrons given will just be deposited in the sea of electrons with nowhere to go B. The electrons given will occupy the space of the electrons that were pushed. C. The electrons given will not flow to the metal because of repulsion. D. The electrons given will travel to the other end through the proton movement.
- Semiconductors have negative temperature coefficient of resistance. Explain its meaning.A docs.google.com/forms/d/e. Marks 8 The temperature term isn't a part of the .total current density in a semiconductor True False The random motion of holes and free electrons due to thermal agitation is called .drift True False Under the equilibrium conditions, the number of holes which are thermally generated is equal to the holes lost by .recombination True False II >Q2/ If the resistivity of pure silicon is 2300 (N. m) and assuming that the valance electrons of silicon is 4. Let T = 300 K. (a) Calculate the electron density per cubic meter (b) Calculate the electron mobility when the electron density is doubled. Note: Avogadro's number is 8.61 x 10 mol Atomie mass of silicon is 28.08 g/mol, mass density is 2.33 g/em
- The resistance ( k2) of a 1 cm' pure silicon crystal.[n-1x1011 cm3, le-1250 cm? V-ls, h-350 cm? V-ls1] 39 34.7 390 347Soru 15 Make a junction with given materials to have ohmic contact and give the electrical property of junction. i) Al ii) Au i) p type Semiconductor with Ps=4 V iv) p type Semiconductor with Ps=4.5 V v) p type Semiconductor with Os=5.5 V O a. i or ii-v, linear resistance O b. i or ii -ii, rectifying O c. i or ii -ii, linear resistance O d. ior ii-iv ,rectifying O e. i or ii-iv, linear resistance O f. i or ii-v, rectifying 210703141750-22397 Önceki sayfaA silicon BJT is connected as shown in the figure below with a current transfer ratio B = 150, V_ BE = 0.7 V, V_CE = 1.5 V, if the base current I_B = 30 µA, the emitter voltage V_E = 1 V, and VCC = 10 V, use circuit theories and principles to determine: Vec Re- R2. R1. Rg. Choose.. The value of the resistor R_B (k Choose... + The value of the resistor R__E (k Choose... The value of the Collector Choose... current I_C (mA). The value of the Emitter current Choose... + L_E (mA). The value of the resistor R_2 (k Choose... + N) if R_1 = 2 k %3D
- Q2/ If the resistivity of pure silicon is 2300 (0. m) and assuming that the valance electrons of silicon is 4. Let T = 300 K. (a) Calculate the electron density per cubic meter (b) Calculate the electron mobility when the electron density is doubled. Note: Avogadro's number is 8.61 x 10 mol Atomic mass of silicon is 28.08 g/mol, mass density is 2.33 g/cmDescribe an extrinsic semiconductor material. What is the value or the electron concentration in an n-type material, and what is the value of the hole concentration in a p-type material?In which of the following is charge most easily transferred? O nonconductors. O semiconductors. O conductors. O insulators