A magnetic circuit with a constant ac voltage amplitude has a core loss totaling 100W at 120Hz and totaling 32W at 60Hz. Find the core loss at 50Hz.
A magnetic circuit with a constant ac voltage amplitude has a core loss totaling 100W at...
Design and Model: a.) An adjustable clipper using only diodes and resistors. The circuit must be able to limit/shorten the AC voltage amplitude (60Hz) to 48 Vrms. (Specify the value of each element) b.) A circuit that doubles an AC voltage (60Hz) 5 Vrms (Voltage Doubler") using only diodes, capacitors and resistors. (Specify the value of each element) Design and Model: a.) An adjustable clipper using only diodes and resistors. The circuit must be able to limit/shorten the AC voltage...
QUESTION 2 The voltage of an AC generator is controlled by? Increasing or decreasing the field current Increasing or decreasing the armature current The number of slip rings QUESTION 3 The frequency of an AC generator is unknown. We know the number poles which 6 and we know the speed n which is 1200rpm. What is the frequency? 602. 50Hz 1200HZ QUESTION 4 The frequency of an AC generator is unknown. We know the number poles which 6 and we...
A series LRC circuit is driven by an ac source with a voltage amplitude of 36.0 V and a frequency of 60.0 Hz. The resistance is 160 Ohm, the inductance is 0.230 H, and the capacitance is 70.0 mu F. a) Determine the impedance of the circuit. b) Determine the current amplitude. c) Determine the voltage amplitude across (i) the resistor, (ii) the inductor and (iii) the capacitor. d) Sketch the phasor diagram (at t = 0) for the circuit,...
An ac series circuit consists of a voltage source of frequency 60 Hz and voltage amplitude V, a 358-12 resistor, and a capacitor of capacitance 6.2 uF. What must be the source voltage amplitude V for the average electrical power consumed in the resistor to be 432 W? There is no inductance in the circuit. Express your answer using two significant figures. temp@tes Symbols uado ředo reset keyboard shortcuts help, VE
A circuit has an ac voltage source and a resistor and capacitor connected in series. There is no inductor. The ac voltage source has voltage amplitude 0.900 kV and angular frequency w = 20.0 rad/s. The voltage amplitude across the capacitor is 0.500 kV. The resistor has resistance R= 0.300 kΩ. Part A What is the voltage amplitude across the resistor? Part B What is the capacitance C of the capacitor? Part C Does the source voltage lag or lead the current? Part D What is the average...
With the circuit shown, if the ac voltage source has a constant voltage but increases in frequency what happens to magnitude of the current in the circuit? current decreases Choose current decreases current increases stays the same w Vs current increases Vs R R stays the same Vs R Choose... R Vs Choose... c R WW Vs Choose... R
In the circuit shown in the figure, the 60-Hz ac source has a rms voltage amplitude of 120 V, the capacitive reactance is 600 2 the inductive reactance is 150 2 and the resistance is 450 12 a) What is the inductance Lof the inductor? (2 pts) b) What is the capacitance C of the capacitor? (2 pts) c) What is the impedance of the circuit? (1 pts) 60 Hz R
With the circuit shown, if the ac voltage source has a constant voltage but increases in frequency what happens to phase difference between the source current and source voltage? Vs phase difference increases Choose phase difference decreases stays the same phase difference increases Vs Choose.. Vs R } Choose... R Vs Choose... H с R Vs Choose... . R w R Vs Choose... .
An AC circuit has a resistance of 500 ohms, a voltage of 200 V, an inductance of 0.4 mHz, a capacitance of 100pF and an angular frequency of 5.00 x 105 rad/s. What is the impedance? What is the current amplitude? What is the voltage amplitude read by a voltmeter across the inductor, the resistor, and the capacitor individually? What is the voltage amplitude read by a voltmeter across the inductor and capacitor together?
A single phase transformer core, for use in a 50Hz electrical network, has the following magnetic characteristic Flux Density B Magnetic Field Strength H Total Core Loss 0.8 1.28 1.68 2.09297RMS Ampere-Turns/cm 1.23 1.85 2.2 2.73 Watts/k 1.0 1.1 1.2 Tesla The core has a cross-sectional area of 175cm2, the mean magnetic path length is 160cm and the density of the core material is 7.5gm/cm3. (a) If a no-load voltage ratio of 6600/231 is required, choose a suitable number of...