Two plates R and S are in the form of a square and have the same thickness.A side of S is twice the side of R . Compare their resistance. The direction of current is shown by an arrow head figure. qquad R

Two plates R and S are in the form of a square and have the same thickness.A side of S is twice the side of R . Compare their resistance. The direction of current is shown by an arrow head figure. longrightarrow R

A and B are two square plates of same metal and same thickness but length of B is twice that of A . Ratio of resistances of A and B is

Two wires of same material and same length have radii r_1 and r_2 respectively. Compare their resistances.

In the following diagram two parallelopiped A and B are of the same thickness. The arm of B is double that of A. Compare these resistances and find out the value of R_A//R_B is

The areas of a square and a circle are equal. The radius of the circle is r and the side of the square is S.Find the circumference of the circle in terms of S.

What is the direction of induced current in resistance 'R' ?

The length of a rectangle R is 10% more than the side of a square S. The width of the rectangle R is 10% less than the side of the square S. What is the ratio of the area of R to that of S?

Four point masses are placed at the corners of a square of side 2 m as shown in the figure. Find the centre of mass of the system w.r.t. the centre of square.

The side of a square is increasing at the rate of 0.2 cm/s. The rate of increase of perimeter w.r.t time is :