a) b) Define the mutual inductance between two coils not electrically connected. Coils A and B are magnetically coupled. Coil A has a self-inductance of 0.30 H and 300 turns, and coil B has a self-inductance of 0.20 H and 120 turns. A change of flux of 8 mWb occurs in coil B when a current of 3A is reversed in coil A. Determine: i. The mutual inductance between the coils, and ii. The coefficient of coupling. CS Scanned with CamScanner
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- You are a journeyman electrician working in an industrial plant. Your task is to connect an inductor to a 480-V, 60-Hz line. To determine the proper conductor and fuse size for this installation, you need to know the amount of current the inductor will draw from the line. The nameplate on the inductor indicates that it has an inductance of 0.1 H. An ohmmeter reveals that it has a wire resistance of 10 . How much current should this inductor draw when connected to the line?Three capacitors having capacitance values of 20F,40F, and 50F are connected in parallel to a 60 - Hz power line. An ammeter indicates a circuit current of 8.6 amperes. How much current is flowing through the 40F capacitor?Given a two magnetically coupled coils -coils physical structure is P11=P22 -self-inductance of coil 1: 288mH -coefficient of coupling: 0.75 -mutual inductance: 90mH -wound on a nonmagnetic core Determine the turns ratio N1/N2 BLANK If N1 =1200, what is the value of P1? BLANK micro
- A coil of inductance 5 H and a resistance of 16 Ω is connected to a 120 V DC supply. Determine (a) the steady state value of current flowing in the coil, (b) the time constant of the circuit,(c) the value of the induced e.m.f. after 0.2 s, (d) the time for the current to rise to 85% of its final value, and (e) the value of the current after 0.5 s.Given a two magnetically coupled coils -coils physical structure is P11=P22 -self-inductance of coil 1: 288mH -coefficient of coupling: 0.75 -mutual inductance: 90mH -wound on a nonmagnetic core Determine L2 Blank 1 milli If N1 =1200, what is the value of P2? Blank 2 microQ.) Two coils with inductances L1 = 10H and L2 = 12H are connected in series and spaced apart so that they do not influence each other. • What is their equivalent inductance? • We place the coils together in such a way that their mutual inductance is LM = 7H. What is their equivalent capacitance if they are wound in the same direction, and what is it if they are wound in opposite directions?
- A solenoid coil needs to be manufactured which produces an inductance of at least 2000 Gauss (in SI system = Tesla) when a 10mA current flows through the conductor. Due to space limitations, the coil should be composed of 10 turns over a 1cm length. Do the required calculations and select a core material for the coil from the table below. Your answer will be given over the following series of questions. A. H = 0.12566 oersted B. H = 12.56637 oersted C. H = 1.25664 The relative permeability of the manufactured solenoid from the previous question is: A. μr = 15.916 B. μr = 15915.964 C. μr = 1.2665e10 D. None of the mentioned/ Geen van die genoemdeGiven a two magnetically coupled coils -coils physical structure is P11=P22 -self-inductance of coil 1: 288mH -coefficient of coupling: 0.75 -mutual inductance: 90mH -wound on a nonmagnetic core Determine the turns ratio N1/N2 If N1 =1200, what is the value of P1? in microGiven a two magnetically coupled coils -coefficient of coupling is 0.6 -Self-inductance L1=180µH and L2 = 500 µH -Coil 1 has 300 turns -Coil 2 has 500 turns Determine P11 Blank 1 nano
- A solenoid coil needs to be manufactured which produces an inductance of at least 2000 Gauss (in SI system = Tesla) when a 10mA current flows through the conductor. Due to space limitations, the coil should be composed of 10 turns over a 1cm length. Select a suitable core material for the manufactured solenoid coil from the table. A. MnZn Ferrite B. 4750 alloy C. None of the mentioned/ Geen van die genoemde D. Silicon ironIn the workshop, when manufacturing an inductor, a technician winds 100 turns of a fine conductor onto a large iron ring and leaves it ready for testing. The next day, another technician comes and inadvertently coils 100 more laps with another fine conductor in the opposite direction. Thinking of having two identical coils in parallel, they connect the terminals of the two in parallel and feed both with the same source. If the same current, I0, flows through the two coils, and we draw an Ampere loop through the center of the ring. Choose the one from the following options. Select one: a. The net current within the Ampere loop is 100 I0 . b. The net current within the Ampere loop is zero. c. The magnetic flux in the ring is going to be twice that of a single coil. d. The net current within the Ampere loop is 200 I0 . show solving steps!!!Lenz stated, “A coil has an inductance of 1 _____ when a current change of 1 _____ per second results in an induced voltage of 1 _____.” Select one: a. ampere, volt, henry b. volt, henry, ampere c. henry, ampere, volt d. inductance, henry, volt