Recent content by mba444

i did so as you said but i got a negative wrong answer can you explain more in depth

Homework Statement 2. The voltage and current at the terminals of the circuit element in Fig. 1 are zero for t<0. For t>0 they are V= e^(-500*t)-e^(-1500*t) V i= 30-40e^(-500*t)+10e^(-1500*t) mA a) Find the power at t = 1 ms. b) How much energy is delivered to the circuit element...

what ? i didnt get it

Homework Statement A diverging lens has a focal length of 15.7 cm. An object 1.91 cm in height is placed 380 cm in front of the lens. Locate the position of the image. Answer in units of cm. Homework Equations (1/f)= (1/p)+(1/i) The Attempt at a Solution...

i didnt understand

Homework Statement A light ray enters the atmosphere of a planet where it descends to the surface 15.2 km below. The index of refraction where the light enters the atmosphere is 1.2 and it increases uniformly to the surface where it has a value of 1.55. I) How long does it take the ray...

thanx i got it now

Homework Statement A series RLC circuit has a resonance fre- quency of 1360/ Hz. When it is operating at a frequency of ! > !0, XL = 9.7 and XC = 9.3 . Find the value of L. Answer in units of mH. Homework Equations X(L)=w*L The Attempt at a Solution what i did is...

Homework Statement An effective AC voltage of 170 V at 60 Hz is applied to an RLC circuit with 20.7 mH inductor, 0.162 μF capacitor, and 55.1 resistor in series. a) What is the effective current? Answer in units of A. b)What is the power factor of the circuit? c) What is the...

Homework Statement A 0.5533 mH inductor has a length that is four times its diameter. If it is wound with 15.4 cm−1 turns per centimeter, what is its length? Answer in units of m. Homework Equations L= (Uo*pi*r^2*N^2)/(l) N= n*l length=4*diameter therefore l= 2*r The Attempt...

Homework Statement A circular loop of wire of radius R = 3.67 m lies in the xy-plane, centered about the origin. The loop is carrying a current of I = 6.2 A flowing in counterclockwise direction. Consider two l = 1.63 mm segments of the loop: one centered about the positive x-axis...

i used the 16 and i got it right .. therefore thanks for your help DOC AL

if i add both the (-8+ 8) i will get zero .. unless i take the magnitude of the of the first so that i get 16 im really not sure =S

Homework Statement Two long straight wires in the xy plane are parallel to the x axis. One wire is at y = −8 cm and the other wire is at y = 8 cm. The current in each wire is 24 A and the currents are in the negative x direction. The permeability of free space is 4 π × 10−7 T · m/A...

i figured out my mistake thanks for your help the answer is 3.7286 cm