State whether the following systems are linear or nonlinear, causal or non causal, fixed or time-varying, and instantaneous or dynamic. Also, find the order of the systems. b) dªy(t) _2_d³y(t)_d²y(t) _ dy(t) dt* dt³ d³y(t) dy(t) dt³ dt Order c) d³y(t) _2 d³y(t)_d³y(t) _4 = e-(¹+²).x(t) dt³ dt³ dt³ y(t) d) daye dy ما d+s Property Linear (Yes/No) Causal (Yes/No) Fixed (Yes/No) Dynamic (Yes/No) -2. -5.y(t)= cos(10nt) x(t) y(t+5)-y(t+1)+0.9·1² · y(t) = x(t) "dy/ft dt² a N Y Y Y -4.. -+5∙y(t) = x(t) dt 4 b Y Y N Y 3 System N Y с N Y 5 Y N Y 5 d

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   • If Vab = 480V in a balanced Y-connected three-phase generator, find the phase voltages, assuming the phase sequence is a. abc, b. acb

DEGREE: Electrical Engineering SUBJECT/COURSE: AC CircuitsTOPIC: Converter and Rectifier 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 possible6. FINAL ANSWERS must be rounded up to three decimal places PROBLEM:A two-anode mercury-arc rectifier delivers a load of 5.98kw at 115volts.  If the primary of the transformer is connected to a 4,600-volt source, the tube drop is 15volts, and a rectangular waveshape is assumed for the anode current, calculate:(a) the anode current;(b) the voltage rating of each of the transformer secondary windings;(c) the primary current, neglecting the exciting current;

DEGREE: ELECTRICAL ENGINEERING SUBJECT/COURSE: AC MACHINES 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 and units)4. ILLUSTRATIONS such as diagrams and graphs are Required5. Step-by-step SOLUTION with Formulas and Symbols. No Shortcut, no skipping, and detailed as possible6. FINAL ANSWERS must be rounded up to two decimal places with corresponding unit. PROBLEM:Given: flux per pole = 1,900,000 maxwells; pole pitch = 6.25; gross length of armature core = 10 inches. Calculate the maximum value of the air-gap density if the flux distribution is sinusoidal.