4-6 Determine the currents I, I2, and I3 shown below using Kirchhoff's Laws. 10 pts Let e = 10.0 V, €2 = 22.0 V, R, = 152, and R2 = 24.8 2. Pay careful attention to your signs! If you calculate a current to be negative, then include the negative sign in your answer. I3 RI R2 Il (a) I: A(+0.01 A) (b) I2 A(+0.01 A) (c) I3 A(+0.01 A) (d) Is current I, flowing vertically upward or vertically downward through the wire the above diagram? (Note that this may or may not correspond to the downward arrow that has been drawn.) A. Upward O B. Downward

2.b. Find the indicated unknown currents in the circuits shown below. 2A| 3. Use Kirchhoff's laws to find the current in all the branches for the circuit below. L, - 18 V 0.5A R 2.5 2 R, 6.0 2 R, 1.5 0.50 E, - 45 V

hiii I need help with part a and part b

Solve the following: 1. How many nanocoulomb are there in 3.65 billion electrons ? 2. A 25 ampere electric current flows in a conductor in 75 millisecond. Find: a. current equivalent in mA? b. How many charges are transferred ? c. How much work is required to transfer if 3V is applied. 3. A charge of 3.5 µC present in an electric field produces a force of 0.008 Newton. What is the intensity of the electric field ? 4. A charge of 0.6 µC is placed in an electrostatic field whose intensity is 3 x 105 N/C. How strong is the force acting on the charge ? 5. Two objects are both negatively charge with 0.04 coulomb each and 140 cm apart. What kind of force exist Between charges? How much? 6. Find the force that exist between two charges of 8.53 μC and 4.5 µC that 0.25 meters in air?

I Review | Constants A3.80 mm diameter wire carries a 15.2 A current when the electric field is 8.60x 10-2 V/m. Part A What is the wire's resistivity? p= 6.42x10-8 2m Submit Previous Answers Correct Correct answer is shown. Your answer 6.4167-10-8 = 6.4167x10-8 Qm was either rounded differently or used a different number of significant figures than required for this part. Part B If a battery voltage of 8.55 V is applied to this wire to produce this current, how long must it be? ? L= 994 Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining

car, what is the current in the car engine? Two point particles with charges +3 µC and +5 µC are held in p each charge in appropriate directions. (a) Draw a free-body diagran Find the distance between the charges. 50 µC and q2 =-25 µC are placed 1.0 m apart. What is the force on a and q2? 3. Point charges qi %3D third charge q3 = 20 µC placed midway between %3D The charges qi = 2.0 x 10 C, q2 =-4.0 x 10 C, and q3=-1.0 x 10 C are placed at the corners of the triangle shown below. What is the force on q1? 4. 5.0 m 3.0 m 4.0m 7.2 The Electric Field If the electric field is 100 N/C at a distance of 50 cm from a point charge q. what is the value of q? 1 The electric tield in a particular thundercloud is 2 10 NC. What is the 2.

2TTE Now In The capacitance per unit length of a coaxial cable was calculated as assume that the region between a very long coaxial cable is filled with a material of conductivity σ and permittivity €. If the radii of the inner and outer conductors are a and b, respectively, find the resistance per unit length between the conductors using the analogy between and fields. „b.

Find the current,voltage and electrical power for each circuit element. Fill out the chart.

(1) What is a definition of electric current? Label the variables. (2) Suppose that 1016 electrons pass through a cross-section of a wire each second. What is the current in the wire? (3) The current in a wire varies with time according to the relation / = 5+3t where I is in amperes andt is in seconds. What is the number of coulombs of charge that pass a cross section of the wire between t=3s and t=5s?

des Constants | Periodic Table uce 365 Part B Determine the terminal voltage of each battery in the figure.(Eigure 1) Determine the terminal voltage of bottom battery. Express your answer to two significant figures and include the appropriate units. Figure < 1 of 1 HẢ r2 = 2.0 Q. Vierminal = 11.37 E = 18 V R = 6.6 Q O You have already submitted this answer. Enter a new answer. No credit lost. Try again. r; = 1.0 Q. E = 12 V Submit Previous Answers Request Answer