## What is the resistance of 1.5 mm cable?

Table 5.5 – Resistance per metre of copper conductors at 20°C for calculation of R1 + R2 | |
---|---|

Conductor cross-sectional area (mm²) | Resistance per metre run (m ohms / m) |

1.0 | 18.1 |

1.5 | 12.10 |

2.5 | 7.41 |

**How do you find the resistance and reactance of a cable?**

CALCULATION OF CABLE RESISTANCE

- Hence R = 22.5/10 = 2.25 Ohms per km.
- Length of conductor = 500m =500/1000 = 0.5km.
- Therefore resistance of copper conductor = 2.25 x 0.5 =1.125 Ohms. Similarly for Aluminium,
- R = 36/S(c.s.a)
- Again S = 10mmsq.
- Hence R = 36/10 = 3.6 Ohms per km.
- Length of conductor = 0.5km.

### What is the resistance of a cable?

Resistance describes how strongly a given cable opposes the flow of an electric current, and conductance measures a wire’s ability to conduct it. There are also two physical quantities associated with them – electrical resistivity and electrical conductivity.

**How do you find the reactance of a cable?**

Inductive reactance XL equals 2π times the product of the frequency of the current and the inductance of the conductor, simply XL = 2πfL. Inductive reactance is expressed in ohms. (The unit of frequency is hertz, and that of inductance is henry.)

## Is impedance and reactance same?

Impedance is the combination of resistance and reactance (both inductive and capacitive) and is a complex number, containing both real and imaginary parts. (The real part of impedance is resistance, while the imaginary part is reactance.) Impedance has both magnitude and phase.

**How do you find the total resistance of a cable?**

Specific Resistance (”ρ”) is a property of any conductive material, a figure used to determine the end-to-end resistance of a conductor given length and area in this formula: R = ρl/A.

### Is reactance the same as resistance?

Mathematically, resistance is simply voltage divided by current. Reactance is a property that opposes a change in current and is found in both inductors and capacitors. Because it only affects changing current, reactance is specific to AC power and depends on the frequency of the current.

**What is reactance formula?**

The formula for calculating the inductive reactance of a coil is: inductive reactance, or XL, is the product of 2 times p (pi), or 6.28, the frequency of the ac current, in hertz, and the inductance of the coil, in henries. XL =2p x f x L.

## Is resistance and resistivity same?

Resistance is the physical property of a substance because of which it opposes the flow of current i.e. electrons. Resistivity is the physical property of a particular substance which is having particular dimensions.

**What is resistance reactance and impedance?**

Reactances resist currents without dissipating power, unlike resistors. Inductive reactance increases with frequency and inductance. Capacitive reactance decreases with frequency and capacitance. Impedance represents total opposition provided by reactance and resistance.

### What is the resistance of a 5.4 m length of copper wire 1.5 mm in diameter 1.68 x10 8 m?

5.1×10−2Ω

**What is the relation between resistance and reactance?**

Resistance and reactance are properties of an electrical circuit that opposes current. The main difference between resistance and reactance is that resistance measures the opposition to a flow of current, whereas reactance measures the opposition to a change in current.

## Is reactance and resistance the same?

**What is the difference between resistance and reactance?**

### What is the distance between resistance and resistivity?

Resistivity is the physical property of a particular substance which is having particular dimensions. Resistance is directly proportional to the length and temperature while it is inversely proportional to the cross-sectional area of the material. Resistance is only proportional to the temperature of the conductor.

**What is the unit of reactance?**

ohms (Ω)

Reactance is mathematically symbolized by the letter “X” and is measured in the unit of ohms (Ω).