What will be the change in resistivity when a wire-is cut into two pieces?

What will be the change in the resistance of the Eureka wire,when its radius is halved and length is reduced to one-fourth of its original length?

rho_1 and rho_2 are the resistivities of the materials of two wires of the same dimensions, what will be the equivalent resistvity of the series combination of the two wires?

when conneceted to 200 V mains suply ,has power pieces , which P_(1) . Now the wire is cut into two equal pieces , which are connected in parallel to the same supply . Power dissipation in this case is P_(2) . What is te ratio of P_(2)and P_(1) ?

How does the (i) pole strength and (ii) magnetic moment of each part of a bar megnet change if it is cut into two equal pieces transverse to length.

What is the change in resistance of a Voltemter if its range is increases by n times ?

The resistivity of a wire if its length be doubled-

What will be the equivalent resistance of two resistors connected parallel combinaation when they are obtained by cutting a 40 ohm resistors in 4 pieces?

Hydra cut into two pieces will result in

The resistance of a conducting wire is 20 Omega . It is bend in the shape of a circle. What will be the resistance between two diametrically opposite points of the circle