A copper wire supplying the heater in Problem 5 will be 6 ft long. What gauge is required if the resistivity must stay below 1.5 ohms/1000 ft to prevent excessive heating of the wire?

Q: Q1. Which of the following is not true of a DC machine commutator? (a) Its made of copper (b) Its…

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Q: Determine the current I, and voltage VCE for the silicon transistor in the circuit below, take B=…

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Q: 5. Examine the truth table below and design the simplest ladder logic using a Karnaugh map. F G Y 1…

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Q: 82 Q.30: For the ideal transformer circuit shown, when V=16cos3t Volt, find the average power…

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Q: B-The Nyquist plot of a system is shown in Fig.4B. Given that P-0, find the i- system order ii-…

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Q: Q2 Find the block diagram х 3D —а1x — а2х — ао х + и(t) X = - - Y = b1x + b1x + bo x

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Q: 8.25 In the diagram in Fig. P8.25 when v(t) = 5 cos 500f V, i(t) = 0.4 cos(500t - 30°) A. Calculate…

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Q: A real transformer has Np-500, Ns=100, Rp=3.52, Rs-22, Xp%-D202, and Xs-82. A 65V RMS source and a…

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Q: A transmission line has the following per-unit-length parameters: L = 0.5 µH/m, C = 200 pF/t R = 4.0…

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Q: Q5)The full wave-controlled bridge rectifier has an ac input of 120 V rms at 50Hz and a 202 load…

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Q: hv n type silicon No = 1 x 1017 cm 0. T = 300K GL 1 x 1019 cms1 Tn =Tp =1 us Hp= 300 cm2/Vs The…

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Q: RESISTANCE IN A CIRCUIT* CONSTRUCT a circuit using a schematic diagram with at least 6 RESISTORS…

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Q: Let x(t) is periodic signal with Fourier series co-efficient c = - The nature of x(t) is ONeither…

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Q: Given the electric field intensity, E = x?y*z°ax + x°y*e'ay +xyza, V/m, find the work done W in…

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Q: Find the energy density WE in free space for the region 2mm <r< 3mm, 0 < 0 < 90, 0 < p < 90, given…

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Q: Consider the system: x + -1 y = (1 0)x Suppose the input is µ(t) = e-t and that the output is y(t) =…

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Q: For a non-magnetic material having e, 2.25, o = 10 4 Find the intrinsic impedance for a wave having…

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Q: 3. Write the simplest Boolean equation for the Karnaugh map below, CD CD | TD CD АВ 1 1 AB AB AB 1 1

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Q: A 440 V three phase, delta connected synchronous motor has load of 9 kW and synchronous reactance of…

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Q: Q.19: For the circuit shown: 1. Find the phasor currents i, & i2? 2. Compute the total power. (Ans.:…

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Q: 4. Three resistors, of 40 N, 60 N, and 120 n are connected in parallel and this parallel group is…

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Q: Determine the maximum load current of a certain transformer rated at 48K VA if 1200 V is on the…

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Q: Q.26: For the circuit shown Find: 1. Turn ratio "n" for max. power delivered to 12:00V (20KQ)…

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Q: 5. a) Explain why a stop button must be normally closed and a start button must be normally open. b)…

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Q: 4H Q.13: For the circuit shown, calculate the current in each branch and the consumed power in each…

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Q: Practice Problem 13.8 In the ideal transformer circuit of Fig. 13.38, find V, and the complex power…

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Q: 8.28 Calculate vdt) in Fig. P8.28. 40 0.05 H ww 100 cos 100/ V 0.04 H 10Ω 1000 μF velt) Figure P8.28

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Q: 8.32 Calculate v () in Fig. PS.32. 2H 21 6n 50 cos 5/ V( c02F 0.05F: 30 Figure P8.32

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Q: Q.27: For the circuit shown, when Vg-1000°V, Zg=10Q & ZL%3D1KQ, then find turn ratio "n" such Vg…

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Q: 11. a) Construct a truth table for the following problem. i) there are three buttons A, B, C. ii)…

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Q: A 440 V three phase, delta connected synchronous motor has load of 9 kW and synchronous reactance of…

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Q: ple karnaugh - 7.18 2. Use a Karnaugh map to develop simplified ladder logic for the following truth…

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Q: For a non-magnetic material having e, = 2.25, o = 10 Find the intrinsic impedance for m a wave…

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Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.