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You are working as an electrician in a large steel manufacturing plant, and you are in the process of doing preventive maintenance on a large DC generator. You have megged both the series and shunt field windings and found that each has over 10 M
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Delmar's Standard Textbook Of Electricity
- Both the electric and magnetic field can produce force. In your opinion why Fm involves cross product and Fe does not? * QQ Fe 4TE,R 2 F = Qux B = Qu×B m The force acts along the line joining the charges for Fe The direction of magnetic force acting on any charged particles Q moving with a uniform velocity U in a magnetic field B is orthogonal with U and B Two like charges repel one another, whereas two charges of opposite polarity attract. Its strength is directly proportional to the product of the magnitudes of the two charges and inversely proportional to the square of the distance between them.arrow_forward= Using Kirchhoff's rules, find the following. (₁ = 70.9 V, 8₂= 60.7 V, and 83 1 E₁ R₂ E₂ 4.00 ΚΩ www R₂ 3.00 ΚΩ d E₁ 2.00 ΚΩ www R₁ (a) the current in each resistor shown in the figure above (b) the potential difference between points c and f 79.1 V.)arrow_forwardWWW An Ac circuit with a Power Source has a resistor and an inductor connected in paralle!. The values are as follows: V=194 R = 104 XL = 81 What is the power factor? *****arrow_forward
- Two coils A & B are connected to a 110V, 50 Hz supply.Resistance of A is 0.5 Ω and inductance of B is 0.002 H. Theinput power is 5 kVA at 0.6 lagging. Evaluate the inductance of Aand resistance of Barrow_forwardQ14. Obtain the equivalent resistance at the terminals a-b for the circuit in Figure Q14. ac 3100 $202 30 Ωξ 10Ω 10Ω §20N bo Figure Q14arrow_forwardA 4.5MF Copacitor to a 74 K A Arilo ohms resistor with ç=20ov. initially unchucged is connected and an emf sourse 1) current in th Ac Circvit immediatlu of ter Saritch s clored?: b)cuirentin Ke ciccuit AMor vera long time after Switch s closed> ) what is te Charge On the copurilor ofter a verq long time atter the Sw/tch s i's clordi 1 How long After the Smitch is Closed (cached 50%0 has the coporitm of idy Pinal voltage.arrow_forward
- Find the inductance of the circuit across terminals a and b, if L1= 16 H, L2= 46 H, L3= 8 H , L4= 39 H , L5= 28 H , L6= 25 H , L7= 23 H , L8= 16 H , L9= 48 Harrow_forwardElectrical Engineering Al (A2 A3 V1 Al A2 N m B1 B2 C1 w Ps 2 A To 240 V supply Supply Neutral NS C2 A4 LY I Is there a circulating current (A5) in the delta connected winding? Is there a significant current trough the short circuits (A6 & A7)? (iv) Does the short circuit on the secondary side make any difference to primary side? bl 62 a B A6 b A7 A5arrow_forwardKirchhoff's voltage law states that the voltages (rises and drops) around a loop combine in this manner: a) Multiplication b) Addition c) Division d) Voltages cannot be combined a d O barrow_forward
- The circuit diagram below shows a generator source supplying three loads through a resistance network. For the values given calculate the voltages at Load A, B, and c. 0.012 ww ww 0.042 ww 0.032 0.062 Load A 120 amp Load B 80 amp Load C 100 amp E-250 Gen 0.060 ww (-) 0.042 0.012 ww 0.032arrow_forward2. Determine the voltage with respect to ground at each point in below. Assume the practical model. Solve and Simulate to compare the result. D1 D2 C R A B D 1.0 kΩ + Vs2 8 V VsI 25 Varrow_forwardSEARCH ASK CHAT MATH SOLVER Question A load is composed of a 4 ohm resistance connected in series with a 3 ohm inductive resistance. The load is connected across a 120 source. Compute: (a) current (b) voltage across the resistance (c) voltage across the inductor Recheck voltages using Vt=120 Varrow_forward
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