The current flowing through an inductor is proportional to the voltage across its terminals proportional to...
d. Its stored energy is proportional to the DC voltage across I. e. Its DC current depends on time. 7. Which statements are true of an inductor? a. It can be used as a high-pass filter. b. It can be used as a low-pass filter. c. Its impedance is directly proportional to the frequency of the AC current through it. d. Its stored energy is proportional to the DC voltage across it. e. Its DC current depends on time. 8....
In a particular inductor, the magnetic flux through each of its 85 turns is measured to be 3.30 milliWeber when the current through the inductor is 1.60 Amperes. After making this measurement, the current through the inductor is then varied as i(in Amperes) = 1.60 + 3t 5/3 - 2 t2 (where t is in seconds). What is the average emf across the inductor between two and three seconds? What is the energy stored in the inductor when t...
A 380 Hz sinusoidal voltage with a maximum amplitude of 120 V at t = 0 is applied across the terminals of an inductor. The maximum amplitude of the steady-state current in the inductor is 20 A. Part A What is the frequency of the inductor current? Part B If the phase angle of the voltage is zero, what is the phase angle of the current? Part C What is the inductive reactance of the inductor? Part D What is the inductance of the inductor? Part E What is the...
A 0.044-H inductor is wired across the terminals of a generator that has a voltage of 2.4 V and supplies a current of 0.033 A. Find the frequency of the generator. Note: The ac current and voltage are rms values and power is an average value unless indicated otherwise.
4. Using Thevenin's theorem, calculate the current flowing through the load connected across terminals A and B of the circuit shown in Figure 4. Also, calculate the power delivered to the load. -10 n NH 100 3100 10020 on =-110n Figure 4: Question 4
A resistor and a capacitor are connected in series across an ideal battery having a constant voltage across its terminals as shown. The capacitor initially uncharged. At the moment the switch is closed the voltage across the capacitor is equal to the battery's terminal voltage less than the battery's terminal voltage, but greater than zero. equal to the battery's terminal voltage zero.
What is Faraday's Law? o It defines the induced voltage across a coil when the magnetic field going through it changes. o It gives the direction of the induced current going through a coil when the magnetic field going through it changes. O The potential difference across a resistor is proportional to both the resistance and the current going through it O The sum of all the current going into a junction has to equal the sum of all the...
Question Completion Status QUESTION 7 Which of the following statements about voltage is correct? a. Voltage flows between positive and negative terminals of a battery According to Ohm's Law, increasing the voltage across a resistor results in a decrease in the amount of current flowing through the Voltage is defined as the work performed to move charges in an electric field, per unit charge. s defined as the time rate of change of the magnetic field surrounding a conductor in...
explain why an led's brightness is proportional to the electric current flowing through it
Electrical engineering car battery. We measure the voltage across its terminals with a voltmeter and it shows an (open circuit) voltage of 12 volts. We place a 5 ohm resistor across the battery terminals, and we measure the current through with ammeter, and it shows 3 Amps. Show the Norton and Thevenin equivalent circuits including parameters for this battery.