Q: If radius is halved what will be the resistance?

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45 cannot be halved by 10.

TRI

47

If drawn to full-sized scale, the scale of something that is halved is 1/2" = 1 "

Two. Alphabet = 8 Half of it = 4 Half of 4 = 2

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

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 increased.

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

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

resistance is inversily proportional to squaire of radius of wire.

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

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

It is halved. coz voltage=current * resistance

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.

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

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