2) Find B F ט

For the circuit shown in the figure, determine the magnitude of the currents I2, 13, and I4 passing through batteries 2, 3, and 4, respectively. In each case, determine whether the battery is supplying power or being charged. The batteries and resistors in the circuit are assumed to be ideal and have the given properties. R, 81= 28.5 V 83 = 22.5 V 82 = 1.50 V 84= 3.00 V R = 19.0 Q R2 = 38.0 R3 = 85.0 SQ Battery 2 is I2 = A supplying power. O being charged. Battery 3 is I = supplying power.

5) 238 92 234 90

c):

20Ω 4. Find the values of I, and l,. 2A 12V 402

(f) 10 12V A B 2A D 3A w IN SA 10V www E 3A ww H

Q4) Find R in the followiny circwit -2 mA 15h 20k www www 30V 80V

Which of the following equations repreşents a power relationship? Select one: C =8+0.016 a. O b. N=14e0.01t O c. y = 3x-1 d. V =10t+3 %3D С. %3D

Question 4 Show that ǝ\rho (x, t) Ət + d√(x, t) dx = 0.

Show that these two are logically equivalent