In an electrical cable there is a single wire of radius `9 mm` of copper. Its resistance is `5 Omega`. The cable is replaced by 6 different insulated copper, wires the radius of each wire is `3 mm`. Now the total resistance of the cable will be

An electric cable of copper has just one wire of radius 9mm. Its resistance is 5ohm. This single copper wire of the cable is replaced by 6 different well insulated copper wires each of radius 3mm. The total resistance of the cable will now be equal to

Choose correct alternative. An electric cable contains a single copper wire of radius 9 mm. Its resistance is 5 Omega . This cable is replaced by six insulated copper wires, each of radius 3 mm. The resultant resistance of cable will be A. 7.5 Omega B. 45 Omega C. 90 Omega D. 270 Omega

An electrical cable of copper has just one wire of radius 9 mm. Its resistance is 10 ohm. If this single copper wire of the cable is replaced by 6 identical well insulated copper wires each of radius 3 mm, what will be the new resistance of the cable?

The resistance of a wire is 2 Omega . The wire is stretched to doubel its length. Now the resistance of the wire will become

A 1m long wire of diameter 0.31mm has a resistance of 4.2 Omega . If it is replaced by another wire of same material of length 1.5m and diameter 0.155 mm , then the resistance of wire is

A 1m long wire of diameter 0.31mm has a resistance of 4.2 Omega . If it is replaced by another wire of same material of length 1.5m and diameter 0.155 mm , then the resistance of wire is

A 6m long wire has diameter 0.5 mm. Its resistance is 50 Omega . Find the resistivity and conductivity.

Let us consider a copper wire having radius r and length l. Let its resistance be R. If the radius of another copper wire is 2r and the length is l//2 then the resistance of this, wire will be

The resistance of a wire R Omega . The wire is stretched to double its length keeping volume constant. Now, the resistance of the wire will become