All categories

2 years ago

Which factors affect the resistance of a material? Select three options. Length current thickness temperature voltage.

1 answer:

8 0

Resistance is a type of opposition force due to which the flow of current is reduced in the material or wire. Length, temperature, thickness are the factors that affect the resistance of a material.

<h3>What is resistance?</h3>

Resistance is a type of opposition force due to which the flow of current is reduced in the material or wire. Resistance is the enemy of the flow of current.

The relation of resistance with length and thickness is given by ;

$\rm R= \frac{\rho l}{A}$

Hence the value of resistance is directly propotional to length and inversly propotional to the area or thickness of the wire.

As the value of temperature increases, the value of resistance in the material is increasing.

Hence length, temperature, thickness are the factors that affect the resistance of a material.

To learn more about the resistance refer to the link;

brainly.com/question/20708652

You might be interested in

A burning piece of wood converts ____ energy into ____ energy

liq [111]

Answer:

a burning piece of converts Chemical energy into Heat(Thermal) and Light energy

8 0

3 years ago

What is the average speed of a bird that flies 1.55 km in 30 minutes

Alexxandr [17]

Answer:

the average speed in annual work out is 46.5

5 0

3 years ago

For a particular scientific experiment, it is important to be completely isolated from any magnetic field, including the earth's

Ivanshal [37]

Answer:

The magnetic field at the center of the coil is $B =53 \mu T$

Explanation:

From the question we are told that

The magnetic field of earth is $B_e = 50 \mu T = 50 *0^{-6} \ T$

The diameter of the wire is $d = 1.0\ m$

The radius is $r = \frac{1}{2} = 0.5 \ m$

The number of turn is $N = 200 \ turns$

The current it is carrying is $I = 0.211 \ A$

The earth magnetic field strength at the center of the coil is mathematically represented as

$B = N \frac{\mu_o * I }{2 * r}$

Where $\mu_o$ is the permeability of free space

$\mu_o = 4\pi * 10^{-7} N/A^2$

$B = 200* \frac{ 4\pi * 10^{-7} * 0.211 }{2 * 0.5}$

$B = 5.304*10^{-5}$

$B =53 \mu T$

3 0

3 years ago

The Sun being the largest body has the highest gravitational pull on all planets however planets do not collapse into the sun th

mojhsa [17]

Answer:

A:gravitational of the earth

7 0

3 years ago

In the space below, write one sentence describing how particles move in a longitudinal wave. Then, write two more sentences desc

kupik [55]

Answer:

First statement: The particles which are displaced is parallel to the direction of energy transport or to the direction the wave travels.

Second statement: amplitude is measured by determining how far the molecules of the medium have been displaced from their normal rest position.

Third statement: wavelength is measured through determining the distance between one point on the wave and the corresponding point on the next one.

Explanation:

Wave can be defined as a displacement that occurs in a medium, from one point to another. There are two different kinds of waves in physics which includes:

- Longitudinal wave and

- Transverse wave.

In a longitudinal wave, particles are displaced parallel to the direction of energy transport or to the direction the wave travels. There are also different properties which can be used to describe a longitudinal wave and they includes:

- amplitude: amplitude is measured by determining how far the molecules of the medium have been displaced from their normal rest position in a longitudinal wave.

- wavelength is measured through determining the distance between one point on the wave and the corresponding point on the next one.

8 0

4 years ago