The velocity of electrons with current density 1 unit and a charge density of 4000 nC/m³ is Select one: a. 0.25*106
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A: Given Multiple choice questions. Please find the below attachment for clear explanation.
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A: Since you post the multiple questions. So I am solving 3rd question for you.
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- At 300 K temperature, the electron mobility for Si is 1400 cm2/Vs. If an electric field of 20 V/m is applied from the outside, estimate the drift velocity of the electrons inside the Si.Which is of the following is true about the electron mobility? (i) When an electric is applied, the electrons move in opposite direction by virtue of its negative charge; (ii) On the other hand, the holes move in the direction of the electric field; (iii) the average electron velocity in the direction of the force imposed by the electric field is called drift velocity; (iv) the electrical conductivity is proportional to both the number of free electrons and electron mobility. A. (i) B. (ii) E. All of the above C. (iii) D. (iv) Other:If a line charge of -16 nC/m is at x = -6 m and y = 4 m, find the electric field intensity E at G(-2, 7, 9). QUICKLY PLEASE ANSWER IN 3 DECIMAL PLACE WILL UPVOTE
- A wire having a uniform linear charge density λ=16 nC/m is bent into the shape shown in the figure. Find the electric potential at point O. (Answer in 2 decimal places)For an electrical component, the formulas for charge and voltage are given below. A is 9 coulombs, B is 12 seconds, C is 3 volts, and D is 24 seconds. Give the current of this component at t1 = 8 sec. You must round your answer to the nearest thousandth and give your answer as an integer followed by the appropriate metric prefix and the letter that represents the units of current.What is the electron velocity in the channel if μn = 600 cm2/V ·s and the electric field is5000 V/cm? (b) Repeat for μn = 400 cm2/V ·swith a field of 1500 V/cm.
- Determine the current flowing through an element if the charge flow is given by q(t) = (8t^2 + 4t – 2)C?For an electrical component, the formulas for charge and voltage are given below. A is 9 coulombs, B is 12 seconds, C is 3 volts, and D is 24 seconds. Give the total energy of this component from 0 to 4 sec. You must round your answer to the nearest integer and give your answer as an integer followed by the appropriate letter that represents the units of energy.A coil of Nichrome wire is 23.0 m long. The wire has a diameter of 0.400 mm and is at 20.0°C. (a) If it carries a current of 0.600 A, what is the magnitude of the electric field in the wire?(b) If it carries a current of 0.600 A, what is the power delivered to it?(c) If the temperature is increased to 300°C and the potential difference across the wire remains constant, what is the power delivered? A coil of Nichrome wire is 23.0 m long. The wire has a diameter of 0.400 mm and is at 20.0°C. Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error.
- Know and be able to use the definitions of voltage and current The expression for the charge entering the upper terminal isq=1α2−(tα+1α2)e−αt C.Find the maximum value of the current entering the terminal ifα=0.03679 s−1.Find the total current flowing (in ampere) in a cylindrical conductor (solid wire) 1 meter long and a diameter of 1mm. Given also that its charge density (De) is 1029 carriers/m3 and its carrier velocity (u) is 19.9x10-6 m/s.A copper wire has a diameter of 2.05 mm and carries a current of 15 A due solely toelectrons. (These values are common in residential wiring.) Each electron has a charge of -1.60 x 10-19 C. Assume that the free-electron (these are the electrons capable of movingthrough the copper) concentration in copper is 1029 electrons/m³. Find the average velocity ofthe electrons in the wire.