What is the fin efficiency of an aluminum heatsink with 20 straight rectangular fins with a thickness of 2mm and a height of 30mm? ?∞ = 25°?; ℎ = 40 ?/?^2?

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Q: Q38. A long straight wire placed along az -axis carries a current of I= 5 A in the +az direction.…

A: We know the magnetic field due to infinite length wire at a distance from current carrying wire .

Q: wopper conductor (for copper conductivity- 59 77- 10 S/m and electron mobility 4.5 10 m/V.s) ?

A:

Q: Q25. A hollowv cylinder of length 1 m has its cross section as shown in Figure below. If the…

A: As per our policy i have attempted only one part. Given data:  l=1 mσ=105 mhos/ma=3 cmb=5 cm    The…

Q: (5) Suppose conducting current is flowing inside a conductor in z-direction. Suppose the equation of…

A: The current density is equal to the curl of the magnetic field. The current density or curl of…

Q: Problem 6.6 The approximate electromagnetic structure of a reluctance force nail gun is shown. The…

A: From the above question, the given data is described below: g0=0.5 mm    bearing thicknessx0=9.5 cm…

Q: A triangular conducting wire loop with side length L-2.5m is placed near infinite straight…

A: Magnetic flux  Magnetic flux is defined as the number of magnetic field lines passing through a…

Q: Consider a spherical conducting shells r= 4 cm and r =11 cm. The space between them is filled with…

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Q: Describe the shape of the curve. How is the magnetic field welated to the current thwough the…

A: The values of the slope and y-intercept provide details on the relationship between the two…

Q: 2. Consider a wire ribbon made from a 2-dimensional conductor with reciprocal mass tensor with…

A: It is given that: bxx=3,byy=4,bxy=byx=0

Q: Two similar plastic spheres are given positive electrical charges. When they are 15.0 cm apart, the…

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Q: very thin spherical shells are given as in the figure below. Let the loads with the inner shell load…

A: very thin spherical shells are given as in the figure below. Let the loads with the inner shell load…

Q: Given Mp = 470 cm²/V-s for Si, what is the hole drift velocity at 8 = 10³ V/cm? What is Tmp and what…

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Q: 1. For spherical and cylindrical electrode system designed in optimum geometric dimensions a) -…

A: For Spherical Electrode system. E=Ur1r2r2-r1r2=Outer electrode radius which is constantr1=inner…

Q: Q (3): A coaxial cable having an inner radius of 1 mm and an outer radius of 2 mm. The space between…

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Q: Inside a metal sphere with radius R, there are two circular holes with radii a and b (Figure). The…

A: The above question is based on the concept of electric field due to a conducting sphere.

Q: .1: Draw circuit given equation.

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Q: What is the capacitance?

A: Consider that plate having k1 as dielctric has capacitance C1,plate having k2 as dielctric has…

Q: • There are two uniform line charges of density p₁= +4nC/m at y=4, z=5, the second line charge p₁ =…

A: The uniform line charge densities are given by⇒ρl1=+4nC/m located at y = 4, z = 5.⇒ρl2=−4nC/m…

Q: 1.Consider a situation where a balloon is rubbed on hair, the balloon is negatively charged. What…

A: 1.) If a balloon rubbed on hair then balloon and hair gets charged. If balloon is negatively charged…

Q: TT=3,1416, €o = · 10-9 36 Two infinite insulated conducting planes maintained at potentials 0 Volts…

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Q: Calculate drift current density in 1.5 mm long slab of intrinsic Si at room temperature under…

A: Given data Length of the slab; d=1.5 mm=1.5×10-3 m Applied voltage; V=10 V Mobility of the current;…

Q: 2. a) Ambipolar diffusion coefficient, D, Dp [(no + ôn) + (Po + ôn)] D' = D„ (no + &n) + Dp (Po +…

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Q: A 0.500 kg mass is attached to a massless string of length 25.0 cm that breaks if it under at least…

A: Given Data  l = 0.25 m m = 0.5 kg

Q: tubalor cross- section toroid An ideal toroid with inner radius and outer radius « and carrying a…

A: We know magnetic flux is multiplication of magnetic field density and area.

Q: -B- An electric cable of 20 mm in diameter and L=1m is to be insulated with plastic (k=0.175W/m.K).…

A: It is given that: r1=202=10 mmK=0.175 W/mKT∞=30°CT1=70°Ch=9.3 W/mK

Q: What will the breakdown strength of air be for small gaps (0.5cm) and large gaps (25cm) under…

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Q: CHALLENGE 4.6.1: Draw circuit given equation. ACTIVITY Note: To create a wire, drag from the output…

A: Given Data:A logical expression of,To Find:Logic circuit for the expression.

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Q: Q1) Use Newton-Raphson method to evaluate the roots of the equation ex = 3x For Xo 0.5 Do five…

A: The solution is given below

Q: Between ferromagnetic and ferrimagnetic materials, which would have a higher saturation…

A: Types of magnetic material Diamagbetic material ferromagnetic material  Paramagnetic material…

Q: Q5:A::How much voltage is required across wo delflection plates separated by 1 cm to deflect an…

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Q: The Maximum working Flux density it a lifting electromagnet is 1.8T and the effective area of a Pole…

A: Flux density B=1.8 TFlux ϕ=353 mWbWe need to determine the radius of the pole face.

Q: O> Let a point chasge of ЗоnС be present unifoom line chaoge 8 nclm at density of be located x=2,…

A: Calculate the distance between the point P and the point M,

Q: 9. Find the magnetic field intensity when the flux density is 8 x 10-6 T in the medium of air. a. 1x…

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Q: 1. Convert the following decimal numerals to their binary, octal and hexadecimal equivalents (in…

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Q: An aluminum ring of radius r, = 5.00 cm and a resistance of 3.25 x 10* A is placed around one end of…

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Q: Problem 13 Find is the resistance of a 29-m-long piece of 18-gauge copper wire having 1.024-mm…

A: 13.  The length of the 18-gauge copper wire is 29 meters.  The radius of the given wire is,…

Q: Qu. Driye a formal the capacitance of infiunit lengh Coaxial cable and then find the Capacilance of…

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Q: Quèstion 2 A field line and an equipotential surface are None of these Inclined at any angle 0…

A: Answer : Always at 90 degree. Option (c) is correct.

Q: A coaxial cable is carrying a uniformly distributed current of 100 A in the inner conductor and -100…

A: Given: A coaxial cable with Current in inner conductor is -100 A Current in outer conductor is 100 A…

Fiber Optics

Fiber optics is a technology used to transmit the facts such as light or pulses with fiber or plastic over long distances. Visual fibers are about the width of a human hair strand and, when tied directly to a fiber-optic cable, can transmit multiple long-distance records and faster in different ways.