- At high frequencies, an inductor becomes an open circuit. Dis- cuss why this is so.

Q: At high frequencies, a capacitor becomes a short circuit. Dis- cuss why this is so.

A: To find: At high frequencies, a capacitor becomes a short circuit.

Q: Can an RLC circuit have the same impedance at two different frequencies? Explain.

A: The impedance of a RLC circuit is given by Z=R2+XL-XC2

Q: When alone in an AC circuit, inductors, capacitors, and resistors all impede current. How do they…

A: Every element has its own characteristics for the applied AC supply. For resistor, current is in…

Q: How can the antenna be driven by an AC circuit?

A: What is an Antenna? An antenna is a metallic structure that captures and/or transmits radio…

Q: Why in present day technology we do not use inductance filters?

A: In the present day technology inductance filters because of damping of AC signals.

Q: Determine the maximum magnetic flux through an inductorconnected to a standard outlet ( ΔVrms = 120.…

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Q: A capacitor of 50 µF and inductance of 0.2025 H are connected in series If the resistance of the…

A:

Q: A 1.00- μ F capacitor is charged by a 40.0-V power supply. The fully charged capacitor is then…

A: Data Given ,  Capacitance ( C ) = 1 μF = 1 × 10-6 F Supply voltage ( V ) = 40 V  Inductance ( L ) =…

Q: Does inductance depend on current, frequency, or both? What about inductive reactance?

A: The inductance, L,  of an inductor depends upon its make and it is independent of the current as…

Q: Design an RLC circuit with M uH inductance and N uF capacitance. Calculate the minimum value of…

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Q: In the circuit, the capacitor is fully charged when switch S is closed. Calculate the time needed…

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Q: - The Q factor of a resonant ac circuit (Section 21–15) can be defined as the ratio of the voltage…

A: (a) Explanation: Write the expression for the reactance of the inductor. XL=2πfresL Write the…

Q: Explain why at high frequencies a capacitor acts as an ac short, whereas an inductor acts as an open…

A:

Q: In an oscillating LC circuit, the maximum charge onthe capacitor is qm . Determine the charge on the…

A: Maximum charge on the capacitor is qm Capacitance is C, current is I and inductance is L Suppose…

Q: Describe the relationship between the charge and current oscillating between a capacitor and…

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Q: Is this circuit capacitive or inductive? Give two reasons.

A: Given:- A circuit is given above in the figure  The R, C, and L are in the series.  Find:- Is the…

Q: - 6 In an oscillating LC circuit, the maximum charge on the capacitor is 4.5 x 10 current through…

A:

Q: Can there be an induced emf in a circuit at an instant when the magnetic flux through the circuit is…

A: Magnetic flux

Q: For a 120-V, 60-Hz voltage, a current of 70 mA passing through the body for 1.0 s could be lethal.…

A: Given data: voltage of source, V  = 120 V Current, I = 70 mA  = 0.07 A

Q: When the current in the RL circuit of Figure 14.12 (b) reaches its final value ɛ/R,E/R, what is the…

A: The current in the RL circuit is given as It=εR1-e-tτ…

Q: Can there be an induced emf in a circuit at an instant when the magnetic flux through the circuit is…

A: Faraday's Law gives us the concept of the induced emf being equal to the rate of change of magnetic…

Q: A mass-spring system with damping consists of a 6-kg mass, a spring with spring constant 4 N/m, a…

A: In this question we use differential equation for Mass spring system and compare to each other.

Q: What is the difference between Capacitive Reactance and inductive reactance?

A: Explanation: The resistance offered by the capacitor is called capacitive reactance, it is inversely…

Q: Would you use a large inductance or a large capacitance in series with a system to filter out low…

A: At a lower frequency, the capacitor has a large capacitive reactance because the capacitive…

Q: Determine the energy stored in the inductor LL as a function of time for the LRLR circuit of the…

A: The equation for the energy stored in an inductor is The equation for the growth of current in a LR…

Q: A voltage E= E,e-at is applied at t= 0 to a circuit of inductance L and R.f the required…

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Q: In an L-R-C series circuit, can the instantaneous voltage across the capacitor exceed the source…

A: Yes, the instantaneous voltage across the capacitor exceeds the source voltage because the voltage…

Q: -. A charged 30 µF capacitor is connected to a 27 mH inductor. What is the angular frequency of free…

A:

Q: When a circuit contains a coil such as solenoid, the self-inductance of the coil prevents the…

A: Self inductance is induction of voltage in circuit when current in wire is changing.

Q: In a purely inductive circuit if the supply frequency is reduced to 1/2, the current will

A: The Reactance of inductive circuit can be given as,  XL = ωL XL = 2πfL

Q: An inductor (L = 400. mH), a capacitor (C = 4.43 µF),and a resistor (R 5 500. Ω) are connected in…

A: Part A:

Q: What effect does changing the frequency of the input signal to the current in the resistor in a…

A: Resistance is affected by frequency. The cause for this is the'skin effect.' Only a small area of a…

Voltage Across Inductor

An actor is a passive electrical component that consists of a coil bent in the form of wire which uses electromagnetism to produce electric current through the coil. When the electric current flows through a conductor that is the coil, a magnetic flux is developed around the conductor. This flow of current through the coil creates a magnetic field based on Fleming's Right-hand thumb rule. If there is any decrease in the current passing through the inductor, then the magnetic field will also decrease and energy is released through the generation of electric current. There is also a secondary voltage inducing in the same coil due to the magnetic flux, since it opposes any changes in the electric current flowing through the circuit. An inductor is also called choke, coil, or solenoid. A choke is designed to block certain frequencies when the DC current passes. A winding coil is coated with insulation to give extra insulation and protect the circuit. They are usually tightly wrapped around a central core which is cylindrical in nature so that the magnetic flux can be induced. The solenoid is a three-dimension coil that is used to exhibit electromagnetism when the magnetic field is developed due to the current flowing through the coil. The sign convention of the inductor is the same as the power dissipating device. When the current flows into the positive side of the voltage across the inductor, the value is positive and the inductor dissipates power whereas when the inductor releases the power back to the circuit, the current has a negative sign convention.