ELL100: INTRODUCTION TO ELECTRICAL ENGG. Lecture 8 Course Instructors: J.-B. Seo, S. Srirangarajan, S.-D. Roy, and S. Janardhanan Department of Electrical Engineering, IITD
Response to a forcing function
Response to a forcing function
Response to a forcing function
Impedance the ratio of voltage to current for exponential waveform extends the concept of resistance to AC circuits a complex number; units same as resistance (Ohms) It has both magnitude and phase; unlike resistance, which has only magnitude.
Impedance the ratio of voltage to current for exponential waveform extends the concept of resistance to AC circuits a complex number; units same as resistance (Ohms) It has both magnitude and phase; unlike resistance, which has only magnitude.
Impedance
Impedance
Impedance
Impedance
Impedance
Impedance
Impedance
Example
Example
Example
Example
Representation of Sinusoids by exponential
Representation of Sinusoids by exponential
Phasor representation Express in terms of Effective/RMS value Phasor:
Phasor representation Express in terms of Effective/RMS value Phasor:
Phasor representation Express in terms of Effective/RMS value Phasor:
Phasor representation Write down the equation of the current shown below as a function of time Represent the current by phasor The current reaches a positive maximum of 10 (A) at
Phasor representation Write down the equation of the current shown below as a function of time Represent the current by phasor The current reaches a positive maximum of 10 (A) at
Phasor representation Write down the equation of the current shown below as a function of time Represent the current by phasor The current reaches a positive maximum of 10 (A) at
Phasor representation Write down the equation of the current shown below as a function of time Represent the current by phasor The current reaches a positive maximum of 10 (A) at
Example
Example
Example
Example
Example
Example
Impedance & Phasor representation
Impedance & Phasor representation
Impedance & Phasor representation
Impedance & Phasor representation
Impedance & Phasor representation
Impedance & Phasor representation
Impedance & Phasor representation
Impedance & Phasor representation
Impedance & Phasor representation
Impedance & Phasor representation
Impedance & Phasor representation
Impedance & Phasor representation
Impedance