Media Summary: Pretty straightforward example -- knowing the resistivity, length, and gauge of wire it's easy to calculate the overall resistance. Knowing the cross-sectional area of a wire and the metal it's made of, we can calculate the drift speed of charges through the wire. In Fig. 27-26, the ideal batteries have emfs ε1=150 V and ε2= 50 V and the resistances are R1=3.0Ω and R2 =2.0 Ω. If the ...
Unit 27 Problem 2 Current - Detailed Analysis & Overview
Pretty straightforward example -- knowing the resistivity, length, and gauge of wire it's easy to calculate the overall resistance. Knowing the cross-sectional area of a wire and the metal it's made of, we can calculate the drift speed of charges through the wire. In Fig. 27-26, the ideal batteries have emfs ε1=150 V and ε2= 50 V and the resistances are R1=3.0Ω and R2 =2.0 Ω. If the ... This physics video tutorial explains the concept of basic electricity and electric Here's a circuit with a combination of series and parallel resistors; we want to find the VIP (Voltage,
