The resistance between ends will be
.

A material of resistivity rho is formed in the shape of a truncated cone of altitude h as shown in the figure. The top end has radius a while bottom b . Assuming a uniform current density through any circular cross-section of the cone, the resistance between two ends is : .

A cylindrical copper rod is reformed to twice its original length with no change in volume. The resistance between its ends before the change was R. Now its resistance will be :

A letter 'A' is constructed of a uniform wire with resistance 1.0Omega per cm. The sides of the letters are 20 cm and the cross piece in the middle is 10cm long. The apex angle is 60^(@) . The resistance between the ends of the legs is close to :

The resistance of each side of an equilateral triangle is 6 ohm. Calculate the equivalent resistance between ends of a side.

The resistance of each side of an equilateral triangle is 3 ohm. Calculate the equivalent resistance between ends of a side.

The resistance of each side of an equilateral triangle is 6 ohm. Calculate the equivalent resistance between ends of a side.

The resistance of each side of an equilateral triangle is 6 ohm. Calculate the equivalent resistance between ends of a side.

A wire of resistance 8R is bend in the form of a circle as shown in the figure. What is the effective resistance between the ends of the diameter AB?