Which of the following statement is true with regard to resistance?

Which of the following statements are true with regard to resistance? Explanation: The expression for resistance is: Resistance=Resistivity*length of wire/ area of cross section of the wire. Hence resistance is directly proportional to length. Explanation: Resistivity = Resistance* Length/area of cross section.

Is resistance directly proportional to the length of a wire?

The resistance of a wire is directly proportional to its length and inversely proportional to its cross-sectional area.

Is resistance directly proportional to diameter?

Resistance is inversely proportional to square of diameter .

Which of the following is true about the resistance of a Zener diode?

2. Which of the following is true about the resistance of a Zener diode? Explanation: All of the statements are true for the resistance of the zener diode.

Which of the following is true for resistance of any material with a uniform cross section?

Resistance is inversely proportional to area of cross-section.

How does resistance change with length?

For a given material, resistance and length formula clearly speaks that the resistance is directly proportional to its length. When the length of the material is increased, its value of resistance also increases. When the length of the material decreases, its value of resistance will also decrease.

How the resistance of a wire depends on the length of the wire experiment?

Factors affecting Resistance: Length of wire – the longer the wire the higher the resistance because in a long wire there are more metal ions for the electrons to pass through.

Is resistance and resistivity directly proportional?

Resistivity ρ is an intrinsic property of a material and directly proportional to the total resistance R, an extrinsic quantity that depends on the length and cross-sectional area of a resistor. The resistivity of different materials varies by an enormous amount.

Is resistance inversely proportional to square of diameter?

The very property of Resistance being inversely proportional to the area of the conductor=> area of any circular section being proportional to square of its diameter => The resistance is inversely proportional to square of the conductor’s diameter.

What is the relation between resistance and radius?

However, the cross-sectional area of the wire is proportional to the square of the radius of the wire. This means that the resistance of the wire and radius of the wire is inversely proportional to each other. Therefore, as the radius increases, the resistance of wire decreases.

Is resistance directly proportional to area of cross section of conductor?

Therefore, resistance is inversely proportional to area of cross section of conductor. resistance is directly proportional to length of wire. therefore option (a) is right answer. According to basics r directly proportional to length of the wire. but coming to power system R= (density*/2πl) *ln (R/r)

How does the length of the wire affect the resistance?

Correct answer is option ‘B’. Can you explain this answer? (1) As the length of the wire increases, the electrons in the wire have to travel more distance. During the journey, they collide with the atoms in the material of the wire. These collisions give rise to the resistance of the wire.

What is the relationship between resistance and area of cross-sectional area?

(2) The larger the cross-sectional area of the conductor, the more electrons are available to carry the current, so the lower the resistance. Therefore, resistance is inversely proportional to area of cross section of conductor. resistance is directly proportional to length of wire. therefore option (a) is right answer.