Consider the circuit pictured in Figure 1 with five resistors connected together. Assume that R1 = 1 , R2 = 2 , R3 = 3 , R4 = 4 , and R5 = 5 .

1. A 20 V emf is connected to points a and b. How much current will run through each resistor?

a. How much current runs through the R5 resistor? Give your answer in ampere.

b. What is the potential difference across the R3 resistor? Give your answer in volt.

2. A 20 V emf is connected to points c and d. How much current will run through each resistor?

a. How many loop rules should be used for this circuit?

b. How many unknown currents are there in this circut?

c. What is the potential difference across the R3 resistor? Give your answer in volt.

d. How many junction rules should be used for this circuit?

e. How much current runs through the R5 resistor? Give your answer in ampere.