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 cross-sectional area of a wire in which a current of 5 mA passes?

7 s

70 s

700 s

1428 s

Question

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 cross-sectional area of a wire in which a current of 5 mA passes?
 	
	
7 s
	
70 s
	
700 s
	
1428 s

anonymous · Answer

@SolomonZelman @DanJS @Astrophysics

danjs · Answer

been a minute since physics 2, but i think it is  1/R1 + 1/R2 + 1/R3   maybe

anonymous · Answer

0.94 Ω

danjs · Answer

$$\frac{ 1 }{ R _{Tot} } = \frac{ 1 }{ R _{1} }+ \frac{ 1 }{ R _{2} }+\frac{ 1 }{ R _{3} }$$

danjs · Answer

yeah, just make it 1/0.94   to solve for Rtot

anonymous · Answer

what about #2 thats the one i was struggling on