GO An alternating emf source with a variable frequency f d is connected in series with a 50.0 Ω resistor and a 20.0 µ F capacitor. The emf amplitude is 12.0 V. (a) Draw a phasor diagram for phasor V R (the potential across the resistor) and phasor V C (the potential across the capacitor), (b) At what driving frequency f d do the two phasors have the same length? At that driving frequency, what are (c) the phase angle in degrees, (d) the angular speed at which the phasors rotate, and (e) the current amplitude?
GO An alternating emf source with a variable frequency f d is connected in series with a 50.0 Ω resistor and a 20.0 µ F capacitor. The emf amplitude is 12.0 V. (a) Draw a phasor diagram for phasor V R (the potential across the resistor) and phasor V C (the potential across the capacitor), (b) At what driving frequency f d do the two phasors have the same length? At that driving frequency, what are (c) the phase angle in degrees, (d) the angular speed at which the phasors rotate, and (e) the current amplitude?
GO An alternating emf source with a variable frequency fd is connected in series with a 50.0 Ω resistor and a 20.0 µF capacitor. The emf amplitude is 12.0 V. (a) Draw a phasor diagram for phasor VR (the potential across the resistor) and phasor VC (the potential across the capacitor), (b) At what driving frequency fd do the two phasors have the same length? At that driving frequency, what are (c) the phase angle in degrees, (d) the angular speed at which the phasors rotate, and (e) the current amplitude?
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
An alternating emf source with a variable frequency fd is connected in series with a 50.0 resistor and a 20.0 mF capacitor. The emf amplitude is 12.0 V. (a) Draw a phasor diagram for phasor VR (the potential across the resistor) and phasor VC (the potential across the capacitor). (b) At what driving frequency fd do the two phasors have the same length? At that driving frequency, what are (c) the phase angle in degrees, (d) the angular speed at which the phasors rotate, and (e) the current amplitude?
A 2.0-μF capacitor is charged to 20V and the capacitor is then connected across a 6.0-μH inductor. What is the peak value of the current?
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