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- The probability of fusion occurring is greatly enhanced when appropriate nuclei are brought close together, but mutual Coulomb repulsion must be overcome. This can be done using the kinetic energy of high- temperature gas ions or by accelerating the nuclei toward one another. (a) Calculate the potential energy of two singly charged nuclei separated by 1.001012. (b) At what temperature will atoms of a gas have an average kinetic energy equal to this needed electrical potential energy?In the saturation region (I-V characteristics) of JFET the value of D18 ssmemanmnssnes at specific (VGS = * .negative voltage ) a. b.c.d a: constant O b: zero O c: maximum O d: Bothaandc OConduc-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 choice
- 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 8/4 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? A. Ia = 81g B. 8Ia = I8 C. Ia = 4Ig D. 4Ia = I8A copper wire is 10 cm long and has a cross-sectional area of 0.4 mm^2 and the resistance of the wire is 0.4 ohms. The wire is connected to a source with a voltage of 10 v, what is the movement, knowing that the density of conduction electrons for copper is 8.5 x 10^28 m^-3 8.5 x 10^4 63-5 For the same wire in the previous question, what is the fersi level if the atomic weight of copper is 0.5 x 10^(-5) 0.94 x 10^(-4) 7.03| ev 0.36 x 10^(-4) 7.01eV 7.05 eV 7.021 evcopper wire is 10 cm long and has a cross-sectional area of 0.4 mm^2 and the resistance of the wire is 0.4 A ohms. The wire is connected to a source with a voltage of 10 v, what is the movement, knowing that the density of conduction electrons for copper is 8.5 x 10^28 m^-3 8.5 x 10^4 0.5 x 10^(-5) 0.94 x 10^(-4) 0.36 x 10^(-4) O
- HW/2 0, If the switch in Fig. 10 opens at 1 , find v(7) for 7 = 0 and we(0). Answer: 8¢V, 533 1. =0 UV P1)lf 6.24 x1018 electrons pass through a wire in 1 s, how many pass through it during a time interval of 2 hr, 47 min and 10 s? 2)What is the appropriate prefix and its abbreviation for each of the following multipliers ? а. 1000 b. 1 000 000 с. (10°) e.(103) d. 0.000 001 f. (10-12)The following graph represents the charge-discharge profile of a Li-ion battery in the 1st and 50th cycles, cycled at a rate of 0.1 C (1C = 274 mA h g-1 ) in the voltage range of 3.0 to 4.6 V. The battery is made up of LiCoO2 cathode and Li anode. Answer the following questions. a. What is the value of charge-discharge current density in this case? How long does it take for this battery to discharge from 4.6 V to 3.0 V in 50th cycle? b. Calculate Coulombic efficiency at 1st and 50th cycles. Why are these values different? c. How would this graph look like if LiCoO2 and Li were replaced by MnO2 and graphite electrodes respectively Make a rough sketch. d. Mention any two practical disadvantages of this battery?
- What is the order of magnitude of the current measured by a Retarding Potential Analyzer at 400 km altitude above Earth in a plasma with 104 particles/cm3 with 1 cm2 collector plate at zero retarding voltage (assume that all electrons are repelled by the grids)? O 1 nA 10 pA O 10 microA 100 nA O1 mAQ4) Attempt to answer ONE branch only: a) If the electron concentration increase along the x-axis of a conductor as shown in equation below: n = 3 + 1030x² + 2 + 1028x + 1026 And D = 1.2 x 10-ª m² /s. Find the diffusion current at x = 5mm?Midterm Test (13 ye 3 elearn.squ.edu.om/mod/quiz/attempt.php?attempt3D1828960&cmid= SQU E-LEARNING SYSTEM الوفت المتبقی 14:30:۔ Two resistors are made out of the same material but have different dimensions, as shown in the figures. The current through these two resistors is in the directions shown. What is the ratio of the resistances of ? the two wires RA/RB LL 2L 2L 2L (B (A) 1/4 a O 8 b 0 بال لبحث hp