At what frequency is a 2000 pF capacitor operating if its reactance is 745 Ω?
Question 11
At what frequency is a 2000 pF capacitor operating if its reactance is 745 Ω?
1.01 kHz
1010 Hz
107 kHz
10.1 kHz
Question 12
If a 22 μF capacitor is connected to a 15 V, 400 Hz source, and its current equals _______
829 mA
1.81 A
18.1 mA
55 mA
Homework Answers
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At what frequency is a 2000 pF capacitor operating if its reactance is 745 Ω?
A certain capacitor in a circuit has a capacitive reactance of 32.9 Ω When the frequency...
A certain capacitor in a circuit has a capacitive reactance of 32.9 Ω When the frequency is 117 Hz. What capacitive reactance does the capacitor have at a frequency of 24.9 kHz?
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Consider an RLC circuit where a resistor (R = 35.0 Ω), capacitor (C = 15.5 μF), and inductor (L = 0.0940 H) are connected in series with an AC source that has a frequency of 80.0 Hz. a. Determine the capacitive reactance at this frequency. b. Determine the inductive reactance at this frequency. c. Determine the total impedance. d. Determine the phase angle. e. Determine the circuit’s resonant frequency.
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1) At what frequency is the reactance of a 4.50-μF capacitor equal to 3.50 kΩ? _____ Hz 2) The speed of light in a semi-precious stone is 2.09 × 108 m/s. What is the index of refraction of the semi-precious stone? numeric response _____ 3) What is the speed of light in a precious stone that has an index of refraction of 2.0490? ____m/s 4) Fernando detects the electric field from an isotropic source that is 19.3 km away by...
QUESTION 9 Connect a 50 0 Resistor in series with a 22 pF Capacitor, driven by...
QUESTION 9 Connect a 50 0 Resistor in series with a 22 pF Capacitor, driven by a (cosine) generator, pushing 12 VRMs at 60 Hz. [a) compute the generator's angular frequency.) [b) determine the capacitor's reactance at this generator frequency.] c) determine the total impedance connected to the generator [d) determine the current from the generator.) [e) determine the Capacitor's RMS voltage.] [f) determine the capacitor's RMS voltage if the generator frequency doubles, but its voltage stays the same.] O...
Problem 3) [15 marks] A 200-V, 100-hp, 0.6 PF leading, Y-connected, 50 Hz synchronous motor has a synchronous reactance of2.0 Ω and negligible resistance. Its mechanical losses and core losses ar...
Problem 3) [15 marks] A 200-V, 100-hp, 0.6 PF leading, Y-connected, 50 Hz synchronous motor has a synchronous reactance of2.0 Ω and negligible resistance. Its mechanical losses and core losses are 1 .0 Kw and 0.5 KW, respectively. The shaft is supplying a 20-hp load at 0.6 PF leading. a) Sketch the phasor diagram of the machine and find the values of IA, I, and EA. b) The load is now increased to 40 hp. Repeat part (a) and find...
A certain capacitor in a circuit has a capacitive reactance of 32.9 Ω When the frequency is 117 Hz. What capacitive reactance does the capacitor have at a frequency of 24.9 kHz?
QUESTION 9 Connect a 50 0 Resistor in series with a 22 pF Capacitor, driven by a (cosine) generator, pushing 12 VRMs at 60 Hz. [a) compute the generator's angular frequency.) [b) determine the capacitor's reactance at this generator frequency.] c) determine the total impedance connected to the generator [d) determine the current from the generator.) [e) determine the Capacitor's RMS voltage.] [f) determine the capacitor's RMS voltage if the generator frequency doubles, but its voltage stays the same.] O...
Problem 3) [15 marks] A 200-V, 100-hp, 0.6 PF leading, Y-connected, 50 Hz synchronous motor has a synchronous reactance of2.0 Ω and negligible resistance. Its mechanical losses and core losses are 1 .0 Kw and 0.5 KW, respectively. The shaft is supplying a 20-hp load at 0.6 PF leading. a) Sketch the phasor diagram of the machine and find the values of IA, I, and EA. b) The load is now increased to 40 hp. Repeat part (a) and find...
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