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# If radius is halved what will be the resistance?

Updated: 12/16/2022

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Q: If radius is halved what will be the resistance?
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### If the radius of a circle halved what will happen to the circumference?

It will also be halved as circumference = 2&Iuml;&euro;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 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 resistance if radius of a wire is decreased by a factor of 3?

resistance is inversily proportional to squaire of radius of wire.

### 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 the area of a circle whose radius is halved?

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

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

It is halved. coz voltage=current * resistance

### How does a resistance of a wire depend on its radius?

Resistance is inversely-proportional to the cross-sectional area of a conductor. For example, doubling its cross-sectional area will halve its resistance, while halving its cross-sectional area will double its resistance.Since the cross-sectional area of a circular-section conductor is proportional to the square of its radius, doubling that radius will reduce its resistance by one quarter, while halving its radius will quadruple its resistance.

### What are the two reasons for the current to double in a circuit?

Since current = voltage / resistance, I = V/R, the current in a circuit will double if either the voltage doubles, or the resistance is halved.

### What will be the effect on specific resistance if length of wire is halved?

it will not effect it because it only depends upon property of medium