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Q: If radius is halved what will be the resistance?
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What is the effect on resistance if the radius of a vessel is halved?

If the radius of a vessel is halved, the resistance will increase by a factor of 16. This is because resistance is inversely proportional to the fourth power of the radius (R ∝ 1/r^4). Therefore, a decrease in radius leads to a significant increase in resistance.


If the radius of a circle halved what will happen to the circumference?

It will also be halved as circumference = 2Ï€r


What happens to the resistance when length is doubled n area is quadrupled?

It is halved.It is halved.It is halved.It is halved.


The volume of a circular cylinder varies directly with the height of the cylinder and with the square of the cylinder's radius If the height is halved and the radius is doubled then the volume will be?

The volume of a circular cylinder varies directly with the height of the cylinder and with the square of the cylinder's radius If the height is halved and the radius is doubled then the volume will be increased.


What happens in a series circuit if the resistance is halved?

If you add a second resistor, the resistance of series circuit will increase.


What happens to the area of a circle when the diameter is halved?

When the diameter of a circle is halved, the radius is also halved since the radius is half of the diameter. The area of a circle is calculated using the formula A = πr^2, where r is the radius. If the radius is halved, the area is reduced to one-fourth of its original size because the radius is squared in the formula. Therefore, halving the diameter of a circle results in the area being reduced to one-fourth of its original area.


How does resistivity vary if area is halved?

If the area is halved while keeping the length and resistivity constant, the resistance will double. This is because there is less space for the electrons to flow through, increasing the collisions encountered, hence increasing the resistance.


What do you think would happen if you halved the radius of a circumference?

circumference would be halved, area would be one fourth of original , andvolume would be one eighth of original.


What happens to the area of a circle whose radius is halved?

the area of the circle will be 1/4 of its original area


Will doubling the resistance in a circuit halve the current if voltage is held constant?

If resistance is halved while voltage remains constant, the current will double.


What happens to resistance if radius of a wire is decreased by a factor of 3?

If the radius of a wire is decreased by a factor of 3, the resistance of the wire will increase by a factor of 9. This is because resistance is inversely proportional to the cross-sectional area of the wire, which is proportional to the square of the radius. So, decreasing the radius by a factor of 3 will result in the area decreasing by a factor of 9, leading to a 9-fold increase in resistance.


If the resistance in a circuit is doubled while the voltage remains the constant the current is?

It is halved. coz voltage=current * resistance