Use the information in the picture: a) Calculate R(bk), the resistance equivalent to R5,R6,R7,R8 and R9 between the terminals b and k. b) Calculate the current through R1.

How do find the equivalent resistance of multiple resistors configures in parallel? You sum the resistances together and then divide by the number of resistors You average all of the individual resistor values. You calculate: 1/ (1/R1 + 1/R2 + + 1/Rn) ... You use the smallest resistor value.

if the resistor R1 and R2 terminals are connected across each and R3 is connected along single terminal. If the R1=5 R2=10 and R3=15 ohms, what will be the Rtotal?

4-5) Before the advent of ohmmeters (even the analog ones), unknown resistances (Runk) were measured using a Wheatstone bridge. The unknown resistance is placed into the circuit at right as shown. The values of R1 and R2 are extremely well known. The resistance of Rvar is adjusted until the meter Runk. Rvar R1. R2 reads no current in the cross branch. The value of Rvar is then read from a dial. Show that Runk can be found from R1 -Ry Rukn