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An RL network is one which consists of ____________
  • a)
    Resistor and capacitor in parallel
  • b)
    Resistor and capacitor in series
  • c)
    Resistor and inductor in parallel
  • d)
    Resistor and inductor in series
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
An RL network is one which consists of ____________a)Resistor and capa...
An R-L network is a network which consists of a resistor which is connected in series to an inductor.
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An RL network is one which consists of ____________a)Resistor and capa...
RL Network: Resistor and Inductor in Series

An RL network is an electrical circuit that consists of a resistor (R) and an inductor (L) connected in series. The series connection means that the current flowing through the resistor is the same as the current flowing through the inductor.

Explanation:

1. Resistor (R):
A resistor is an electrical component that provides resistance to the flow of electric current. It dissipates electrical energy in the form of heat. The resistance value of a resistor is measured in ohms (Ω).

2. Inductor (L):
An inductor is a passive electrical component that stores energy in its magnetic field when current flows through it. It opposes changes in current flow. The inductance value of an inductor is measured in henries (H).

Series Connection:
In a series connection, the components are connected one after the other in a single path, such that the same current flows through each component. In the case of an RL network, the resistor and inductor are connected in series.

Behavior of an RL Network:
When an RL network is connected to a voltage source, the behavior of the circuit depends on the frequency of the applied voltage. The inductor and resistor react differently to the changes in frequency.

1. Low Frequency:
At low frequencies (DC or low-frequency AC), the inductor acts as a short circuit, as the reactance of the inductor is very low. In this case, most of the voltage drop occurs across the resistor, and the inductor has negligible effect on the circuit.

2. High Frequency:
At high frequencies, the reactance of the inductor increases, and it begins to act as a significant impedance in the circuit. As a result, the current through the inductor lags behind the voltage, causing a phase shift between the voltage and current waveforms.

Applications of RL Networks:
RL networks are commonly used in various electrical and electronic circuits, including:

1. Filters: RL networks can be used to design low-pass, high-pass, and band-pass filters.

2. Power Supplies: RL networks are used in power supply circuits to filter out unwanted noise and stabilize the output voltage.

3. Oscillators: RL networks are used in oscillator circuits to provide the required phase shift for oscillation.

4. Transformers: RL networks are also used in transformers to transfer electrical energy between circuits with different voltage levels.

In conclusion, an RL network consists of a resistor and an inductor connected in series. The behavior of the circuit depends on the frequency of the applied voltage, and RL networks find applications in various electrical and electronic circuits.
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An RL network is one which consists of ____________a)Resistor and capacitor in parallelb)Resistor and capacitor in seriesc)Resistor and inductor in paralleld)Resistor and inductor in seriesCorrect answer is option 'D'. Can you explain this answer?
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