Two cylindrical rods A and B have same resistivities and same lengths. Diameter of rod A is twice the diameter of the rod B. Ratio of voltage drop across rod A to rod B is: A E (B) Ž (C) 2 (D) 4

Two cylindrical wire A and B have the same resistance . The ratio of their specific resistances and diameters are 1 : 2 each, then what is the ratio of the length of B to the length of A ?

Two cylindrical wire A and B have the same resistance . The ratio of their specific resistances and diameters are 1 : 2 each, then what is the ratio of the length of B to the length of A ?

Two cylindrical rods of same length have the area of cross section in the ratio 2:1 rods are made up of same material, which of them conduct heat faster ?

Two cylindrical rods of same meterial have the same temperature difference between their ends. The ratio of rates of flow of heat through them is 1 : 8. The ratio of the radii of the rods are 1 : 2. What is the ratio of their lengths ?

Two cylindrical rods of same cross-section area and same length are connected in series to an ideal cell as shown.The resistivity of left rod is rho and that if right rod is 2 rho Then the variation of potential and electric field at any point P distant x from left end of combined rod system are given by

Two cylindrical rods of same cross-section area and same length are connected in series to an ideal cell as shown.The resistivity of left rod is rho and that if right rod is 2 rho Then the variation of potential and electric field at any point P distant x from left end of combined rod system are given by

Two cylindrical rods of the same material have the same temperature difference between their ends. The ratio of the rates of flow of heat through them is 1 : 8. The radii of the rods are in the ratio 1 : 2. What is the ratio of their lengths ?

Anil and Sunil broughts two rods A and B of length 5 m each , respectively . The Young's modulus of elasticity of rod A is twice that of rod B , and the density of rod A is 8 times that of rod B . When a sound wave is allowed to traverse through each rod , Anil and Sunil claimed that the sound waves travel faster in their respective rods .Find in which rod will the sound wave take lesser time ?