Two square metal paltes are of same thichness and material. The side of B is twice that of A. Thses are connected in series, figure. If the resistance of A and B are denoted by `R_(A)` and `R_(B)` , find `R_(A)//R_(B)`.

Two square metal plates A and B are of the same thickness and material. The side of B is twice that of A. These are connected as shown in series. If the resistances of A and B are denoted by R_(A) and R_(B) then (R_(A)//R_(B)) is :

Two square metal plates A and B are of same thickness and material. The side of B is twice that of A. These are connected in series, as shown in Fi. 4.3. Find the ratio R_(A)//R_(B) of the resistance of the two plates.

Two conducting wires A and B are made of same material. If the length of B is twice that of A and the radius of circular cross-section of A is twice that of B, then resistances R_(A)" and "R_(B) are in the ratio

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 A and B of same material having their lengths in the ratio 6:1 are connected in series. The p.d. across the wires are 3V and 2V respectively. If r_(B)//r_(A) and r_(B) are radii of A and B respectively, r_(B)//r_(A) is

Two wires A and B made of same material and having their lengths in the ratio 6:1 are connected in series The potential difference ascross the wire 3V and 2V respectively. If r_A and r_B are the radii of A and B respectively, then r_B/r_A is