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An inductor is connected to a 6.0 V direct supply which has a negligible internal resistance. The resistor (R) has a resistance of 0.8 Q. When the circuit is switched on it is observed that the current increases gradually. The rate of growth of the current is 200 As' when the current in the circuit is 4.0 A. R (0.8 Q) +6 6 V L (a) Calculate the induced e.m.f. of the coil (b) Hence calculate the inductance of the coil. (c) Calculate the energy stored in the inductor when the current is 4.0 A. (d) (i) State the condition when the energy stored by the inductor becomes maximum. (ii) Find the current at this time.

An inductor is connected to a 6.0 V direct supply which has a negligible internal resistance. The resistor (R) has a resistance of 0.8 Q. When the circuit is switched on it is observed that the current increases gradually. The rate of growth of the current is 200 As' when the current in the circuit is 4.0 A. R (0.8 Q) +6 6 V L (a) Calculate the induced e.m.f. of the coil (b) Hence calculate the inductance of the coil. (c) Calculate the energy stored in the inductor when the current is 4.0 A. (d) (i) State the condition when the energy stored by the inductor becomes maximum. (ii) Find the current at this time.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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Emf and inductance. Pls answer all questions, thank you very much.

An inductor is connected to a 6.0 V direct supply which has a negligible internal resistance. The resistor (R) has a resistance of 0.8 Q. When the circuit is switched on it is observed that the current increases gradually. The rate of growth of the current is 200 As' when the current in the circuit is 4.0 A. R (0.8 Q) 6 V L (a) Calculate the induced e.m.f. of the coil (b) Hence calculate the inductance of the coil. (c) Calculate the energy stored in the inductor when the current is 4.0 A. (d) (i) State the condition when the energy stored by the inductor becomes maximum. (ii) Find the current at this time.
Transcribed Image Text:An inductor is connected to a 6.0 V direct supply which has a negligible internal resistance. The resistor (R) has a resistance of 0.8 Q. When the circuit is switched on it is observed that the current increases gradually. The rate of growth of the current is 200 As' when the current in the circuit is 4.0 A. R (0.8 Q) 6 V L (a) Calculate the induced e.m.f. of the coil (b) Hence calculate the inductance of the coil. (c) Calculate the energy stored in the inductor when the current is 4.0 A. (d) (i) State the condition when the energy stored by the inductor becomes maximum. (ii) Find the current at this time.
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