Recent content by jersey

B=uIN/l N=turns of wire l= length if solenoid u= 4(pi)(10^-7Tm/A)

Ok thankyou brilliant. I'm getting basics confused.

What is the formula for magnitude of the inner field?

Can anyone help me with this question?

.20 should be used not 20. What about my second equation, can you help me substitute in?

So I have: magnetic field = permeability x turn density x current For a solenoid of length L 20cm with N = 2500 turns , the turn density is n= N/L = 125 turns/ m. I=2.5 ampres. B =0.07853981633974483 Tesla + magnetic field = permeability x turn density x current For a solenoid...

Homework Statement The figure shows cross-sectional views of two cubical capacitors, and a cross-sectional view of the same two capacitors put together so that their interiors coincide. A capacitor with the plates close together has a nearly uniform electric field between the plates, and...

Homework Statement 1. Homework Statement A 20cm long solenoid has 4000 turns of wire. Insiude this solenoid is a second on, also 20cmlong but with 2500 turns of wire. If a 2.5 A current flows in each solenoid in the same directon, what is the magnetic field inside the inner solenoid...

HMm.. thank you.. is this better... V=kQ/r 8.99 x 10^9 x 1.0x 10^-6/ 3 and 8.99 x 10^9 x 1.0 x 10^-6/6 for W=qV = .2 x 10^-6 x 1498.3 =0.00029966N

Thank you so much.

Homework Statement A 0.45 T magentic field points due east. Find the magnitude and direction of the force on a +1.0uC charge moving southward at 3.5 m/s? Homework Equations F= qvB Right hand rule The Attempt at a Solution Using right hand rule, direction of the force is up...

Homework Statement +1.0uC *-------3.0m---------*-----------3.0m---------* A B a) calculate the electric potential energy at A, 3.0m away from a point charge of +1.0uC. b) calculate the electric potential...

Vd=Vb+2Ve

Vd=Vb+Ve

sorry Vd/1 is the same as Vd