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anonymous
 one year ago
MEDALS N BECOMING A FAN
1.)Three resistors 2.5 Ω, 3.5 Ω and 4 Ω are connected in parallel. What is the equivalent resistance?
0.94 Ω
9.4 Ω
1.1 Ω
10 Ω
2.) How long would it take for 3.5 C of charge to pass through a crosssectional area of a wire in which a current of 5 mA passes?
7 s
70 s
700 s
1428 s
anonymous
 one year ago
MEDALS N BECOMING A FAN 1.)Three resistors 2.5 Ω, 3.5 Ω and 4 Ω are connected in parallel. What is the equivalent resistance? 0.94 Ω 9.4 Ω 1.1 Ω 10 Ω 2.) How long would it take for 3.5 C of charge to pass through a crosssectional area of a wire in which a current of 5 mA passes? 7 s 70 s 700 s 1428 s

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@SolomonZelman @ash2326

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2Parallel circuit for resistors formula \(\dfrac{1}{R_{total}}= \dfrac{1}{R_1}+\dfrac{1}{R_2}+\dfrac{1}{R_3}\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0#2 is the one im really stuck on

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2put them in to get \(\dfrac{1}{R_total} =\dfrac{1}{2.5}+\dfrac{1}{3.5}+\dfrac{1}{4}= \dfrac{131}{140}\) hence \(R_{total}= \dfrac{140}{131}=1.06\)

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2Actually, I forgot all of my physics knowledge hehehe... have to rely on others.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.01 Amp = 1 C/s. Therefore\[I=\frac{ q }{ \Delta t }\]You're given q and I, solve for delta t. Don't forget that I is given in mA. It must be converted to A.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0is it 70? @ospreytriple

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Not quite.\[\Delta t = \frac{ q }{ I } = \frac{3.5\text{ C}}{0.005 \text{ A}} = ?\]
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