Recent content by runningirl

4.5/50=I for each bulb. then .18 mA for the total current in the parallel circuit. is that right?

is this how i would find current in the parallel circuit? 1/50+1/50=2/50=1/R R=25 ohms then to find circuit, i would need the voltage for each bulb... but how would i find that? is it 2.75 for each?

oh, it's just 45(50) V. would the current for each bulb still be 45...? and how would this change for a parallel circuit>

4.5/100

isn't it 100 ohms?

Homework Statement Two identical long bulbs are wired in series and connected to a 4.5-volt battery pack. The resistance of each bulb is 50 ohms. a. Determine the voltage across each bulb. b. Determine current through each bulb. c. How does this compare to the current flowing out of...

shouldn't qc be closer to qa? when i found the distance i said that d^2=some neg number so i think i did something wrong. but i believe i had the right method. .00675=9*10^9(2)(-3)/d^2

right.. i understand that c has to be an X2 distance, but how do i find that x2 distance?

does it matter how far away it is from a or b? because i said it didn't.

Sorry, but I don't understand where I could put C.

can i do .00675=9*10^9(2.0 )(3.0 )/d^2... find d for distance between a and b. but how do i find the C distance?

Homework Statement 1.) You have three charged objects: A; B; and C. Given that qA = 2.0 C; qB = - 3.0 C; and qC = -4.0 C, how could you arrange A, B, and C so that: a. The force that A exerts on B is equal to .00675 N. b. The net force exerted on C is 0.0 N. Homework Equations...

Homework Statement A demonstration device consists of two parallel metal plates separated by an insulating support. The device is placed on top of a negatively charged van de Graaff generator. In between the plates are several Stryofoam balls covered with metallic paint. a) Describe what...

Homework Statement What is Coulomb's law? Describe what needs to exist in order for the Coulomb based force to exist. What does this force act on? Where does it act? Homework Equations The Attempt at a Solution Coulomb’s law states that the electrical force between two charged...

i was wondering if the net force would change though. because it wouldn't be 0, would it? or it would stay 0 because the smaller sphere is 0?