Recent content by s0mebody

Oh in that case, I found I3 to be 0.5A. Thus, R3 = V3 / I3 R3 = 10 / 0.5 = 20 ohms Thanks!

I really can't understand this.. I tried this: If R3 is parallel to R2. R23 = R2R3 / R2+R3 = 10R3 / 10+R3 I23 = I2 + I3 = 1 + I3 V23 = V2 = 10V = V3 Is that right? What should I do next?

I still don't get it. The answer to R3 should be 20 ohms. But I can't think of any solution that will lead to that.

Homework Statement http://kpopgames.net/res.jpg In the circuit shown, R1 = 1 ohms, R2 = 10 ohms, I1 = 3.5 A and I4 = 2 A. The battery has negligible internal resistance. If the rate at which R4 is dissipating electrical energy is 20W: a) What is R4 b) What is R3 c) What is I3 d) What is the...

Can you elaborate further? I didn't quite understand.

Oh you mean that the problem is missing the mass? If that's so then I cannot solve this.

Homework Statement Two point charges, Q1 and Q2 are 6m apart. The electric field intensity a point A, midway between the two charges is 5 N/C directed toward Q2, and the potential at the same point is 45V. Find: a) the magnitude of Q1 b) the magnitude of Q2 Homework Equations...

Homework Statement Two large parallel metal plate sheets carrying opposite electric charges of equal magnitude are separated by a distance of 38.0mm. The electric field between them is uniform and has magnitude 480 N/C. a) What is the potential difference between the sheets? b) Which sheet is...

For this question, I have solved letters a, b and c. I'm stuck at letter d. Homework Statement Two point charges ql = +2.40 nC and q2 = -6.50 nC are 0.100 m apart. Point A is midway between them; point B is 0.050 m from ql and 0.060 m from q2 (Fig). Take the electric potential to be zero at...