How do you find the effective resistance of a series circuit?

For a circuit with resistances R1 and R2 in series or in parallel as in Figure 2, the effective resistance can be calculated by using the following rules. Rab = R1 + R2.

What is impedance and how we calculate the impedance of RL Series circuit?

The impedance of series RL Circuit is nothing but the combine effect of resistance (R) and inductive reactance (XL) of the circuit as a whole. The impedance Z in ohms is given by, Z = (R2 + XL2)0.5 and from right angle triangle, phase angle θ = tan– 1(XL/R).

How can you identify impedance of series RL circuit justify?

So the total impedance of the series circuit becomes just the value of the resistance and therefore: Z = R. Then at resonance the impedance of the series circuit is at its minimum value and equal only to the resistance, R of the circuit.

What are the factors for selecting a resistor give example?

The 7 Resistor Characteristics You NEED to Consider

• 1) Power rating. This should be a no-brainer, but sometimes the best of us overlook it.
• Figure 1: example of a resistor derating curve.
• 2) Tolerance.
• 3) Voltage rating.
• 4) Temperature coefficient.
• 5) Noise.
• 6) Frequency response.
• 7) Stability.

What is the effective resistance in the circuit?

Hint: Effective Resistance refers to the resistance between two points in any electric network in any electric circuit. The total resistance of all the resistors used in any electric circuit where the resistor is two or more is the effective resistance of the circuit.

What is the effective resistance in the given circuit?

The two resistances are connected in series. So their effective resistance is, Rs =R1 + R2. = 2 Ω + 2Ω

What is the impedance of an RL circuit?

Series RL Circuits Therefore, the two voltage drops (VR and VL ) are out of phase, based on the current I. When a sine wave is applied to an RL series circuit, the initial opposition to current flow is a series combination of R and X1. This total opposition (combination) is known as impedance, symbolized by Z.

What is the impedance at a LR series circuit?

A LR circuit consists of an inductor and a resistor in it. Where the inductor is denoted by L an the resistance is denoted by R . This type of combined circuit is applicable for AC currents and the combined effect of these two values is known as impedance and denoted by “Z” and the value for LR circuit is √(R2 +ω2 L2).