Chapter 19, Problem 16Q

Given the circuit shown in Fig. 19-38, use the words “increases,” “decreases,”or ”stays the same” to complete the following statements:

a. If R₇increases, the potential difference between A and E____ . Assume no resistancein and E.
b. If R₇-increases, the potential difference between A and E_____. Assume and Ehaveresistance.
c. If R₇ increases, the voltage drop across R_{4_____}
d. If R₂ decreases, the current through R_{1_______}
e. If R₂ decreases, the current through R_{6______}
f. If R₂ decreases, the current through R₃_____
g. If R₅ increases, the voltage drop across R_{2________}
h. If R₅ increases, the voltage drop across R_{4 _________}
I. If R_2, R_5, and R₇ increase, E (r=0)______