mutual inductance
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Q: 18. Two coils of inductances 4 H and 6 H are connected in parallel. If their mutual inductance is 3…
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Q: inductance of the combination if mutual inductance assists and if mutual inductance opposes the sel
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Two coils of inductances 4 H and 6 H are connected in parallel. If their mutual inductance is 3 H. Calculate the equivalent inductance of the combination if mutual inductance assists and if mutual inductance opposes the self-inductance respectively.
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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?You are working in an industrial plant. You have been instructed to double the capacitance connected to a machine. The markings on the capacitor, however, are not visible. The capacitor is connected to 560 volts and an ammeter indicates a current of 6 amperes flowing to the capacitor. What size capacitor should be connected in parallel with the existing capacitor? What is the minimum AC voltage rating of the new capacitor? What is the minimum DC voltage rating of the new capacitor? What is the minimum KVAR size that can be used in this installation?
- You are an electrician working in an industrial plant. You discover that the problem with a certain machine is a defective capacitor. The capacitor is connected to a 240-volt AC circuit. The information on the capacitor reveals that it has a capacitance value of 10 mF and a voltage rating of 240 VAC. The only 10-mF AC capacitor in the storeroom is marked with a voltage rating of 350 WVDC. Can this capacitor be used to replace the defective capacitor? Explain your answer.R.) Two coils of inductances 4 H and 6 H are connected in parallel. If their mutual inductance is 3 H. Calculate the equivalent inductance of the combination if mutual inductance assists and if mutual inductance opposes the self-inductance respectively. a. 2.4 H & 1.4 H b. 3.75 H & 0.94 H c. 6.25 H & 2.75 H d. 16 H & 4 HTwo coils of inductances 4 H and 6 H are connected in parallel. If their mutual inductance is 3 H. Calculate the equivalent inductance of the combination if mutual inductance assists and if mutual inductance opposes the self-inductance respectively. a. 2.4 H & 1.4 H b. 3.75 H & 0.94 H c 6.25 H & 2.75 H d. 16 H & 4 H
- Two coupled coils of self-inductances 0.6H and 0.16 H have a coefficient of coupling 0.8. Find their mutual inductance and turns ratio.The value of the Inductance can be determined by (W - is energy stored in inductor, I - current) O a. ½ W21 O b. 2W/ 12 O c. 2WI2 O d. 2W21EQUIVALENT INDUCTANCE( NEED NEAT HANDWRITTEN SOLUTION ONLY OTHERWISE DOWNVOTE).
- You are modifying the design of an existing inductor and want the inductance to be 1/2 of it's current value. You could achieve this by which of the following options. Select all that apply. Question 1 options: Decreasing the number of windings by a factor of 2. Decreasing the length of the inductor by a factor of 2. Increasing the area of the inductor by a factor of 2. Increasing the number of windings by a factor of 2. None of the other responses are correct.An inductive coil with resistance R and inductance L is connected in parallel with a 40-ohm resistance. The combination then is connected across a 50Hz source. If the currents in the coil and the 40-ohm resistor are 7∟-53 A and 5 A respectively. What is the inductance of the coil?i. The equivalent inductance between A and B of the circuit shown in figure B2 is 4.67mH. Find the value of unknown inductor, L. L1 L4 2mH 1.5mH L3 7mH L5 14mH A LT -4.67MH B Figure B2 ii. Consider a coil with inductance, L'. Number of turns, 'N' and length of the coil, l". If the length of the coil is halved and number of turns is doubled, what will be the new value of inductance?