Table of Contents
- 1 How does the diameter of A wire affect conduction of electricity?
- 2 How does the resistance of A piece of conducting wire change if both its length and diameter are doubled?
- 3 How is the resistance of A wire affected if its?
- 4 What is the relation between resistance and length of wire?
- 5 What is the cross section area of two wires with same length?
How does the diameter of A wire affect conduction of electricity?
The less heat the wire produces, the lower its temperature will be while operating. Therefore a larger-diameter wire will be able to carry a larger current before it heats up enough to melt or scorch its insulation or ignite other objects near it.
What happens to the resistance of A piece of wire if you double its length and halve its radius?
but also on its physical dimensions. The resistance of a conductor is directly proportional to its length (L) as R ∝ L. Thus doubling its length will double its resistance, while halving its length would halve its resistance.
When the length of the wire is doubled and all other factors remained the same what would the wire resistance become?
As the length of wire gets doubled, the cross-sectional area will become half of its previous value because volume of wire remains constant. Hence, we can see that the new resistance is four times the previous resistance. Option C is correct.
How does the resistance of A piece of conducting wire change if both its length and diameter are doubled?
If the material and the length of the wire is constant and the diameter doubled then the resistivity will decrease by 4 times.
How does area of a wire affect resistance?
More collisions mean more resistance. Second, the cross-sectional area of the wires will affect the amount of resistance. Wider wires have a greater cross-sectional area. In the same manner, the wider the wire, the less resistance that there will be to the flow of electric charge.
How does the cross-sectional area of a wire affect its resistance?
Resistance is inversely proportional to cross-sectional-area. The bigger the cross sectional area of the wire the greater the number of electrons that experience the ‘electric slope’ from the potenetial difference.
How is the resistance of A wire affected if its?
(a) Resistance of a wire is directly proportional to the length of a wire; so if the length is doubled, resistance is also doubled. Thus, if radius is doubled, area increases four times and hence the resistance becomes one-fourth.
How will the resistance of A conductor and the resistivity of its material will change if its length is made doubled by stretching?
When the wire is stretched to double the length , the area of cross section gets reduced to half. So when the wire is stretched, the resistance multiplies by four times.
When the length of A wire is doubled then its resistance also gets doubled?
So, the new resistance, after doubling the length of the wire, becomes twice of the original resistance. Hence, if the length of a wire is doubled, then its resistance becomes doubled.
What is the relation between resistance and length of wire?
The resistance of a long wire is greater than the resistance of a short wire because electrons collide with more ions as they pass through. The relationship between resistance and wire length is proportional .
How will the resistance of a conductor and the resistivity of its material will change if its length is made doubled by stretching?
What is the relationship between resistance and conductance?
Conductance is the opposite of resistance: the measure of how easy it is for electric current to flow through something. Conductance is symbolized with the letter “G” and is measured in units of mhos or Siemens. Mathematically, conductance equals the reciprocal of resistance: G = 1/R.
What is the cross section area of two wires with same length?
And Area, Length ,Time as constant as well as rho since made up of same element. Ans: Ratio of heat produced would be 6:1 in proportion as for A:B as for cross-sectional area of 1:6. Originally Answered: Two wires (A and B) of the same material and having the same length have their cross section area in the ratio 1 is to 6.
What is the ratio of two wires of the same material?
Two wires of same material have lengths L and 2L cross – sectional areas 4A and A respectively. The ratio of their resistances would be Two wires of same material have lengths L and 2L cross-sectional areas 4A and A respectively. The ratio of their resistances would be
Resistance is proportional to the length of the wire and inversely to the cross sectional area. Just go back to the water pipe analogy to conceptualize what is happening . The longer the pipe the more resistance to flow. The wider the pipe less resistance to flow. For the formulas google it.
What is the ratio of resistance to area of cross section?
This is of course a valid ratio in DC or AC under the conditions of strict covariance current / voltage, in a stationary state. Since the areas of cross section are in the ratio 1 : 6 and resistance is inversely proportional to area of cross section, the ratio of the resistances is 6 : 1.