considering the circuit... how would i answer d correctly? also how would i comp

Question

considering the circuit... how would i answer d correctly? also how would i complete E correctly?

DAT 00% Mon 6:41 PM E Preview File Edit View Go Tools Window Help 1A Wright(1).pdf (page 7 of 8) -Edited a a search 8. In CX2, you explored what happened when a resistor was added, in parallel with another resistor, to a DC A Wright(1) circuit. These questions concern a similar circuit. axHow many of these four resistors are connected in parallel? R2, Ry RI 10 O which (b How many of these four resistors are connected in series? 2 OST R2 R3 c) Given that R 100. 2, R 202 2, R 3052, and R. 400.2 calculate this circuit's equivalent resistance. LIDO 13.05 R4 (d) Based either on what you found in CX2, or what you know about series/parallel connections, would you expect the batt curreni to increase if resistor 4 is removed from the circuit? Explain in 1-2 sentences without equations or math (or reference to subsequent work!). yes current wi 11 inc veaso 6 use com tavrt Choi is op R 4 IS S in U 2 e) [10 points] Does the battery current increase when resistor 4 is removed from the circuit? Assume an ideal battery with an emf of360 M. Show your work below, then write YES or NO in the box, along with the calculated quantities that support your answer

Explanation / Answer

d) If we remove R4 from the circuit, net resistance of the ciecuit increases.

so, current through the battery decreases.

e) No

when R4 present

Req = R1 + R2 + R3*R4/(R3+R4)

= 100 + 202 + 305*400/(305 + 400)

= 475 ohms

when R4 is removed

Req' = R1 + R2 + R3

= 100 + 202 + 305

= 607 ohms

clearly Req' > Req

so, current through battery is decreased when R4 is removed.

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