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Use KCL to determine the current
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Principles and Applications of Electrical Engineering
- Figure 2.1 shows a simple circuit. Explain why using a DMM tomeasure the DC voltage across resistor R2 might lead to inaccurate results. Include in your answer how the value of R2 might affect the size of the error and provide some circuit diagrams and equations to showhow to calculate the error.arrow_forwardSolve for the values of i1, i2 and the powers for the sources in Figure P2.31. Is the current source absorbing energy or delivering energy? Is the voltage source absorbing energy or delivering it?arrow_forwardThe circuit below(left) displays a schematic diagram of a battery. The voltage measured by U1 is called the terminal voltage given R1 = 1 ohm. In the circuit below(right), the terminal voltage of each of the battery-resistor combination is VT = 1.5 volts. Find -The power dissipated by the internal resistance R1. -The power dissipated by R5 if R1 = R2 = R3 = R4 = 0-The percentage of power dissipation loss due to the four resistors R1, R2, R3, and R4.arrow_forward
- lo R1 CR2 V alx ........ Figure Q2(b) : Two Closed Loops Circuit (i) Explain the steps required in supermesh analysis for Figure Q2(b). (ii) Determine the mesh currents using the Kirchhoff's Current Law (KCL) and Kirchhoff's Voltage Law (KVL) for Figure Q2(b).arrow_forwardEлample (1) For the series-parallel arrangement shown in Figure below, find: a) The supply current. I ?. b) The current flowing through each resistor. c) The p.d. across each resistor. R3 2.50 40 Ri R4 RE I ? 200Varrow_forwardAssuming R0 = 2 , R1 = 1 , R2 = 4/3 , R3 = 6 , and VS = 12 V in the circuit of Figure P2.55, use Kirchhoff’s voltage law and Ohm’s law to finda. ia, ib, and ic.b. The current through each resistance.arrow_forward
- The circuit shown below is an example of a simple voltage regulator. Determine the current through R2 in mA. Assume the following values for the resistors: R1 = 13 kn, R2 = 10 kn. Express your answer using three decimal places. Assume the opamp is ideal and Q1's B is infinity. Q1 VCC Vref NPN U1 OUT 20V 1.2V R1 R2 + +arrow_forwardP 2.9-2 + Determine the voltage, v, at 1 = 1 s and at t= 4 s for the circuit shown in Figure P 2.9-2. t = 3 s 1 = 2 s 5 k2. 1 mA ( O 2 mA Figure P 2.9-2arrow_forwardThe voltage source V1= 200 V with internal resistance R1=1 in Figure 2.1 will feed the resistive resistor RL with a transformer with a conversion ratio of 10 and considered ideal. What should be the value (RL=?) of the RL resistor to be placed so that the RL resistor can draw maximum power from the voltage source? What is the power consumed by the voltage source (Pv1=?) when the RL resistor you found is active? In this case, how much power (PRL=?) is wasted on the resistor RL you found? Calculate your solutions legibly and write the results you find inside by drawing a box as below.arrow_forward
- Find the values of i1 and i2 in Figure P2.34. Find the power for each element in the circuit, and state whether each is absorbing or delivering energy. Verify that the total power absorbed equals the total power delivered.arrow_forwardSolve for i1 in Figure P2.34 by using superposition.arrow_forwardroblem 2. (a) Find the equivalent resistance between point a and point b in figure below. (b) If the potential drop between point and point b is 12.0 V, find the current in the 12.0 resistor.arrow_forward
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