Given the circuit shown in Fig. 26–34, use the words “increases,” “decreases,” or “stays the same” to complete the following statements:
(a) If R7 increases, the potential difference between A and E _____. Assume no resistance in Ⓐ and
(b) If R7 increases, the potential difference between A and E _____. Assume Ⓐ and
(c) If R7 increases, the voltage drop 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 R6 _____.
(g) If R5 increases, the voltage drop across R2 _____.
(h) If R5, increases, the voltage drop across R4 _____.
(i) If R2, R5, and R7 increase.
FIGURE 26–34 Question 15. R2. R5, and R7 are variable resistors (you can change their resistance), given the symbol .
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