Parts B, c, d An alternating emf source with a variable frequency fa is connected in series with a 43.02 resistor and a 19.0 μF capacitor. The emfamplitude is 11.0 V. Consider a phasor diagram for phasor VR (the potential across the resistor) and phasor Vc (the potential across thecapacitor). (a) At what driving frequency fa do the two phasors have the same length? At that driving frequency, what are (b) the phaseangle in degrees, (c) the angular speed at which the phasors rotate, and (d) the current amplitude?(a) Numberi 216.4(b) Number i 45(c) Number i1361.6(d) Number i 158UnitsUnitsUnitsUnitsHz(degrees)rad/smA

Resistance R=43.0 Ω Capacitance C=19.0 μF Emf Voltage V=11.0 V

An alternating emf source with a variable frequency fa is connected in series with a 43.02 resistor and a 19.0 μF capacitor. The emf amplitude is 11.0 V. Consider a phasor diagram for phasor VR (the potential across the resistor) and phasor Vc (the potential across the capacitor). (a) At what driving frequency fd do the two phasors have the same length? At that driving frequency, what are (b) the phase angle in degrees, (c) the angular speed at which the phasors rotate, and (d) the current amplitude? (a) Number i 216.4 (b) Number (c) Number (d) Number i 45 1361.6 158 Units Units Units Units Hz (degrees) rad/s mA

An alternating emf source with a variable frequency fa is connected in series with a 43.02 resistor and a 19.0 μF capacitor. The emf amplitude is 11.0 V. Consider a phasor diagram for phasor VR (the potential across the resistor) and phasor Vc (the potential across the capacitor). (a) At what driving frequency fd do the two phasors have the same length? At that driving frequency, what are (b) the phase angle in degrees, (c) the angular speed at which the phasors rotate, and (d) the current amplitude? (a) Number i 216.4 (b) Number (c) Number (d) Number i 45 1361.6 158 Units Units Units Units Hz (degrees) rad/s mA

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 74P

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An alternating emf source with a variable frequency fa is connected in series with a 43.02 resistor and a 19.0 μF capacitor. The emf amplitude is 11.0 V. Consider a phasor diagram for phasor VR (the potential across the resistor) and phasor Vc (the potential across the capacitor). (a) At what driving frequency fa do the two phasors have the same length? At that driving frequency, what are (b) the phase angle in degrees, (c) the angular speed at which the phasors rotate, and (d) the current amplitude? (a) Number i 216.4 (b) Number i 45 (c) Number i 1361.6 (d) Number i 158 Units Units Units Units Hz (degrees) rad/s mA
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