27. Resistors & DC Circuits
Resistors and Ohm's Law
27. Resistors & DC Circuits Resistors and Ohm's Law
5PRACTICE PROBLEM
A rod has a resistance R. A craftsman fabricates the rod to create a new rod that has 4 times the length of the original rod. Assuming the new rod has the same density and resistivity, and all material is conserved, determine the rod's resistance in terms of R.
A rod has a resistance R. A craftsman fabricates the rod to create a new rod that has 4 times the length of the original rod. Assuming the new rod has the same density and resistivity, and all material is conserved, determine the rod's resistance in terms of R.