Question

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7) Given a timing circuit, you are asked to connect the following components in series. A 6-microfarad capacitor, and a 2002. They car connected with a 30 V voltage source that has angular frequency of 250 rad/s. a) What is the impedance of the entire circuit? b) What is voltage across both the resistor and capacitor? c) Calculate the phase angle d) What quadrant would you find this angle? 8) A resistor is put in a circuit to control the amount of charge that flows through it. In the process of controlling the charge, what will happen to the body of the Resistor? a) It will get hot b) It will remain unchanged (invariant) c) It depends on how much charge is going through the circuit 9) In a RLC circuit, if the value of the capacitor is changed (to a higher value), what will happen to the resonance frequency? a) It will increase b) It will decrease c) It will be invariant d) It will attenuate 10) What is the main reason we use AC and not DC current in our homes? a) The electric field is omnipresent b) The magnetic field will do work c) It does not oscillate d) It is a constant horizontal flow 11) If three like positive charges get close to each other, they will repel each other (based on the following equation: Draw a picture showing the field line interactions of the two positive charges.

Answer 1

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7 v=30V C= 6 MF R= 2002 = 6x10-652 w = 250 rad's 666.67 a - (a) X= ㅗ we = 0.0431 6) - - Impedance z = R² + x² ~ 1696 a VR= IR where I 30v 696 (0.0431) (200) 8.62 V (0.0431) (666.62) IX. = - (28.7 V V= teen ' ( xe ) = -73.3 Count the asign ude if only nega (0) needed) (d) uth