(Solution) - Given the circuit shown in Fig 19 36 -(2025 Original AI-Free Solution)

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Given the circuit shown in Fig. 19-36, use the words ??increase,?? ??decrease,?? or?? stays the same to complete the following statement:

(a) If R7 increases, the potential difference between A and E____. Assume no resistance in (A) and ?.
(b) IF R7 increases, the total potential difference between A and E____. Assume (A) and ? have resistance.
(c) If R7 increases, the voltage drops across R4 ______.
(d) If R2 decreases, the current through R1________.
(e) If R2 decreases, the current through R6________.
(f) If R2 decreases, the current through R3________.
(g) If R5 increases, the voltage drops across R2______.
(h) If R2 increases, the voltage drops across R4______.
(i) If R2, R5, andR7 increase, ? (r = 0) ______.