What is the value of the instantaneous current if t=40 s and I= 15 cos(100nt - 70) ? -3.5 Non of the answers 5.1 3.5
Q: R = 40 L=2 H 20 Volts C = 0.5 F
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- Helping tags: Electrical Engineering WILL UPVOTE, just pls help me answer the following and show complete solutions. Thanks!DEGREE: ELECTRICAL ENGINEERING SUBJECT/COURSE: AC CIRCUITS NOTE: Please solve in this way. 1. Please have a good handwriting, some of the answers are not readable. Thank you! 2. GIVEN.(include symbols and units) 3. REQUIRED/FIND/MISSING (with symbol/s) 4. ILLUSTRATION (Required). 5. STEP-by-STEP SOLUTION with Formulas and Symbols. No Shortcut, No skipping, and detailed as possible 6. FINAL ANSWERS must be rounded up to three decimal places PROBLEM: • In a balanced three-phase wye-delta system, the source has an abc-phase sequence and Van=120<40° Vrms. The line and load impedance are 0.5+j0.4 Ω and 24+j18 Ω, respectively. Find the delta currents in the load.DEGREE: ELECTRICAL ENGINEERING SUBJECT/COURSE: AC CIRCUITS NOTE: Please solve in this way. 1. Please have a good handwriting, some of the answers are not readable. Thank you! 2. GIVEN.(include symbols and units) 3. REQUIRED/FIND/MISSING (with symbol/s) 4. ILLUSTRATION (Required). 5. STEP-by-STEP SOLUTION with Formulas and Symbols. No Shortcut, No skipping, and detailed as possible 6. FINAL ANSWERS must be rounded up to three decimal places PROBLEM: • A Y-connected load is supplied from a 400V, 3 -phase, 3-wire symmetrical system RYB. The branch circuit impedances are ZR=10V3+j10; Zy=20+j20v3 ZB=0-j10 Determine the current in each branch. Phase sequence is RYB.
- DEGREE: ELECTRICAL ENGINEERING SUBJECT/COURSE: AC CIRCUITS NOTE: Please solve in this way. 1. Please have a good handwriting, some of the answers are not readable. Thank you! 2. GIVEN.(include symbols and units) 3. REQUIRED/FIND/MISSING (with symbol/s) 4. ILLUSTRATION (Required). 5. STEP-by-STEP SOLUTION with Formulas and Symbols. No Shortcut, No skipping, and detailed as possible 6. FINAL ANSWERS must be rounded up to three decimal places PROBLEM: • In a balanced three-phase delta-delta system, the source has an abc-phase sequence. The phase angle for the source voltage is <Vab=40° and lab=4<15°Arms . If the total power absorbed by the load is 1400W, find the load impedance.DEGREE: ELECTRICAL ENGINEERING SUBJECT/COURSE: AC CIRCUITS NOTE: Please solve in this way. 1. Please have a good handwriting, some of the answers are not readable. Thank you! 2. GIVEN.(include symbols and units) 3. REQUIRED/FIND/MISSING (with symbol/s) 4. ILLUSTRATION (Required). 5. STEP-by-STEP SOLUTION with Formulas and Symbols. No Shortcut, No skipping, and detailed as possible 6. FINAL ANSWERS must be rounded up to three decimal places PROBLEM: • The phase b line voltage and phase a line current of a balanced three phase system are V = 220sin(wt+210°)V and I＝10sin(wt-30°)A respectively. What is the power of the system?DEGREE: ELECTRICAL ENGINEERING SUBJECT/COURSE: AC CIRCUITS NOTE: Please solve in this way. 1. Please have a good handwriting, some of the answers are not readable. Thank you! 2. GIVEN.(include symbols and units) 3. REQUIRED/FIND/MISSING (with symbol/s) 4. ILLUSTRATION (Required). 5. STEP-by-STEP SOLUTION with Formulas and Symbols. No Shortcut, No skipping, and detailed as possible 6. FINAL ANSWERS must be rounded up to three decimal places PROBLEM: • A positive-sequence balanced three-phase wye-connected source with a phase voltage of 120 V supplies power to balanced wye-connected load. The per phase load impedance is 40+j10Ω. Determine the line currents in the circuit if <Van=0°.
- DEGREE: ELECTRICAL ENGINEERING SUBJECT/COURSE: AC CIRCUITS NOTE: Please solve in this way. 1. Please have a good handwriting, some of the answers are not readable. Thank you! 2. GIVEN.(include symbols and units) 3. REQUIRED/FIND/MISSING (with symbol/s) 4. ILLUSTRATION (Required). 5. STEP-by-STEP SOLUTION with Formulas and Symbols. No Shortcut, No skipping, and detailed as possible 6. FINAL ANSWERS must be rounded up to three decimal places PROBLEM: • In a three-phase balanced delta-delta system, the source has an abc-phase sequence. The line and load impedances are 0.3+j0.2 Ω and 9+j6 Ω, respectively. If the load current in the delta is IAB=15<40°Ams, find the phase voltages of the source.An equation is given by e = Emωt. Assuming maximum voltage is 200V and a frequency of 60Hz.How long will it take to reach 377 volts? Group of answer choices 5ms 5µs 1s 2msDEGREE: ELECTRICAL ENGINEERING SUBJECT/COURSE: AC CIRCUITS NOTE: Please solve in this way. 1. Please have a good handwriting, some of the answers are not readable. Thank you! 2. GIVEN.(include symbols and units) 3. REQUIRED/FIND/MISSING (with symbol/s) 4. ILLUSTRATION (Required). 5. STEP-by-STEP SOLUTION with Formulas and Symbols. No Shortcut, No skipping, and detailed as possible 6. FINAL ANSWERS must be rounded up to three decimal places PROBLEM: • A 300V(line) 3-phase supply feeds a star-connected load consisting of non-inductive resistors of 15, 6 and 10Ω connected to the R, Y and B lines, respectively. The phase sequence is RYB. Calculate the voltage across each resistor.
- DEGREE: ELECTRICAL ENGINEERING SUBJECT/COURSE: AC CIRCUITS NOTE: Please solve in this way. 1. Please have a good handwriting, some of the answers are not readable. Thank you! 2. GIVEN.(include symbols and units) 3. REQUIRED/FIND/MISSING (with symbol/s) 4. ILLUSTRATION (Required). 5. STEP-by-STEP SOLUTION with Formulas and Symbols. No Shortcut, No skipping, and detailed as possible 6. FINAL ANSWERS must be rounded up to three decimal places • A positive-sequence three-phase balanced wye voltage source has a phase voltage of Van=100 <20° V. Determine the line voltages of the source.Given the complex numbers A1=630 and A2=4+j5, (a) convert A1 to rectangular form: (b) convert A2 to polar and exponential form: (c) calculate A3=(A1+A2), giving your answer in polar form: (d) calculate A4=A1A2, giving your answer in rectangular form: (e) calculate A5=A1/(A2*) giving your answer in exponential form.Please help with this, the answer is NOT 33Ohms. I've been stuck on this so would appreciate right answer, thanks.