Consider the circuit below. Given that R1=5kQ, R2-4k2, R3=4k2, R4=2kS2, Vin 30V Answer the following questions: ] Calculate the equivalent resistance of the circuit shown below. Find total current (1) and the voltage across R1, indicate the voltage polarity. Salculate the power absorbed by the source and R1. Comment on your results a) b) c) R2 R4 R1 R3 R5 Vin R6
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- Estimate voltage E2 when E1=90sin2400t V, R1=R2=20 ohms, L1= L2=3mH and M=0.15mH150 100 + VA- a -4V AVA -7V 81. B b Figure 2 shows a simplified model of a gas-discharge lamp. One characteristic of these lamps is that they exhibit negative resistance; in other words, as current increases the voltage drops further, making such lamps inherently unstable. As such, a current-limiting ballast is required. For the connection shown in the figure: 1. Find the equivalent Thevenin circuit of the lamp. 2. Find the ballast resistance needed to limit the current drawn from a 24-volt source to 6 amperes.INSTRUCTIONS: Solve the following problems. Show and COMPLETE solutions. Draw all CIRCUIT DIAGRAMS or the equivalent circuit (dummy circuit) as the case may be. Write your solutions on sheet/s of short bond paper. A battery is to consist of 20 identical cells. The emf of each cell is 1.5 V and the internal resistance is 0.20 ohm. This battery will be used to supply power to a 10 ohm lamp. Determine the current on the lamp if:1. The 20 cells are connected in series 2. The 20 cells are connected in parallel 3. The 20 cells are arranged 5 cells in series in 4 parallel rows.
- 4.-For-labeled currents, draw an arrow to show the direction of the actual positive current. For labeled voltages, circle the node that is at the actual highest potential. Note that the positive and negative signs of the voltage represent the polarity of the probes of a voltmeter connected to the device. The value shown is the reading on the voltmeter. (segment of wire) 2A -2A -5A 2.de 3A TA Cov E 5V 12V + 3V -10V -201The circuit shown below is an example of a simple voltage regulator. Determine the current through R1 in mA. Assume the following values for the resistors: R1 = 11 kQ, R2 = 20 kQ. 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 wW WWDThe diagram in the figure shows a simple circuit consisting of a battery and a load consisting of two resistors.The battery voltage is UB = 56 V and the value of the resistors is:R1 = 1800R2 = 5400a) The ammeters in the circuit show the following value:A1 shows valueA2 shows valueA3 shows valueb) In the load, the effect developsc) The total resistance of the load is
- voltage across R has to be measured with a voltmeter. What percentage error is expected in measuring the voltage if R₁=R₂=R3=R₂=R-100 Q for meter resistance of 1500 Q and 15000 Q. Also calculate the percentage error in measuring the current through R, if the ammeter resistance is 15 and 1.5 Q. Assume Eo, lo as true value and Em, Im as measured value. 10: F 20 20 I' R₁ R₂ R3 ARA A Rg J B 1500022 ģiseen 15000For the circuit of shown in Figure, find the following quantities: a. The circuit current, I. b. The total resistance of the circuit, RT. c. The value of the unknown resistance, R. d. The voltage drop across all resistors in the circuit. 3k0 4 ka E- 130 V P- 100 mw1 ka R.The 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 current passing through R1, R2, R5
- Problem 452 16V for circuit shown in figure, find the current in each resistor. Itas ceDetermine the equivalent resistance across the terminals if R1 = 2R2 = 3R3 = 4R4.etc. and R11 = 3 ohms. R. Ry RI R.consider the following circuit composed of four resistors and an ideal battery. each resistor has a resistance of 2.00 ohms. the battery has a terminal voltage of 30.0V. a.) what is the equivalent resistance of this circuit? b.) what is the equivalent current passing through this circuit? c.) what is the voltage drop across R1? d.) what is the current passing through R2?