Two wires of equal lengths, one of copper and the other of manganin, have the same resistance. Which wire is thicker?

Two wires of equal length, one of copper and the other of manganin have the same thickness. Which one will be used for its electrical transmission lines?

Two wires of equal length, one of copper and the other of manganin have the same thickness. Which one will be used for its electrical heating devices? Why?

Two wires of equal length, one of aluminium and the other of copper have the same resistance. Which of the two wires is lighter? Hence explain why aluminium wires are preferred for overhead power cables. ( rho_Al = 2.63 xx 10^-8 Omega m, rho_Cu = 1.72 xx 10^-8 Omega m . Relative density of A1 = 2.7, of Cu = 8.9.)

Two copper wires, one of length 1 m and the other of length 9 m, are found to have the same resistance. Their diameters are in the ratio

Two wires X and Y are of equal length and have equal resistance. If the resistivity of X is more than that of Y which wire is thicker and why? For the electric circuit given below calculate Equivalent resistance of the current.

Two wires X and Y are of equal length and have equal resistance. If the resistivity of X is more than that of Y which wire is thicker and why? For the electric circuit given below calculate current in each resistor.

Two wires X and Y are of equal length and have equal resistance. If the resistivity of X is more than that of Y which wire is thicker and why? For the electric circuit given below calculate Total current drawn from the battery.

Two wires of equal lengths are bent in the form of two loops. One of the loops is a square shaped whreas the other loop is circular. These are suspended in a uniform magnetic field and the same current is passed through them. Which loop will experience greater torque? give reasons.