Complex current calculation in Parallel R L Circuit

Engineering
Thread starter gl0ck
Start date Nov 25, 2012
Tags

Calculation Circuit Complex Current Current calculation Parallel

In summary: Real* resistors have a physical wire inside of them that dissipates power as heat, while *imaginary* resistors have an electric field that creates a current in the air. **The steady state means that the current and voltage will be the same throughout the entire inductor.

Nov 26, 2012

gneill

Mentor

The impedances of reactive components (inductors, capacitors) change with frequency. Furthermore, they change in opposite directions so that inductor impedance goes up with increasing frequency while capacitor impedance goes down. So no, in general you can't just set ω to a convenient value like ##2\pi##; you must use the value specified.

For part (a) you just need to derive the expression for the current, you don't have to plug in any numbers.

For part (b) you need to first determine an expression for C that will minimize the magnitude of the current. Use the given hint.

<h2>What is a parallel R L circuit?</h2><p>A parallel R L circuit is a type of electrical circuit in which the components, such as resistors and inductors, are connected in parallel to each other. This means that each component has its own separate path for current to flow through.</p><h2>How do you calculate the total current in a parallel R L circuit?</h2><p>To calculate the total current in a parallel R L circuit, you can use the formula I = V/R, where I is the current, V is the voltage, and R is the total resistance of the circuit. However, in a parallel circuit, the current is divided among the different components, so you will need to use the formula I = V/Req, where Req is the equivalent resistance of the circuit.</p><h2>What is the difference between a series R L circuit and a parallel R L circuit?</h2><p>In a series R L circuit, the components are connected one after the other, so the same current flows through each component. In a parallel R L circuit, each component has its own separate path for current to flow through, so the total current is divided among the components. Additionally, in a series circuit, the total resistance is equal to the sum of the individual resistances, while in a parallel circuit, the total resistance is less than the smallest individual resistance.</p><h2>How do you calculate the total power in a parallel R L circuit?</h2><p>To calculate the total power in a parallel R L circuit, you can use the formula P = VI, where P is the power, V is the voltage, and I is the total current. However, in a parallel circuit, the voltage is the same across each component, so you can also use the formula P = V^2/R, where R is the equivalent resistance of the circuit.</p><h2>What are some real-world applications of parallel R L circuits?</h2><p>Parallel R L circuits are commonly used in household wiring, where multiple appliances are connected to the same power source. They are also used in electronic circuits, such as computers and televisions, to power different components simultaneously. In addition, parallel R L circuits are used in power distribution systems, where power is divided among different branches to supply electricity to different areas.</p>

What is a parallel R L circuit?

A parallel R L circuit is a type of electrical circuit in which the components, such as resistors and inductors, are connected in parallel to each other. This means that each component has its own separate path for current to flow through.

How do you calculate the total current in a parallel R L circuit?

To calculate the total current in a parallel R L circuit, you can use the formula I = V/R, where I is the current, V is the voltage, and R is the total resistance of the circuit. However, in a parallel circuit, the current is divided among the different components, so you will need to use the formula I = V/Req, where Req is the equivalent resistance of the circuit.

What is the difference between a series R L circuit and a parallel R L circuit?

In a series R L circuit, the components are connected one after the other, so the same current flows through each component. In a parallel R L circuit, each component has its own separate path for current to flow through, so the total current is divided among the components. Additionally, in a series circuit, the total resistance is equal to the sum of the individual resistances, while in a parallel circuit, the total resistance is less than the smallest individual resistance.

How do you calculate the total power in a parallel R L circuit?

To calculate the total power in a parallel R L circuit, you can use the formula P = VI, where P is the power, V is the voltage, and I is the total current. However, in a parallel circuit, the voltage is the same across each component, so you can also use the formula P = V^2/R, where R is the equivalent resistance of the circuit.

What are some real-world applications of parallel R L circuits?

Parallel R L circuits are commonly used in household wiring, where multiple appliances are connected to the same power source. They are also used in electronic circuits, such as computers and televisions, to power different components simultaneously. In addition, parallel R L circuits are used in power distribution systems, where power is divided among different branches to supply electricity to different areas.