* 37% . +0 anterior posterior cardinal v. Embryology Lab 4-Ohm\'s Law: Worksheet

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* 37% . +0 anterior posterior cardinal v. Embryology Lab 4-Ohm's Law: Worksheet Electric circuits II the cirouit in the dr 3 points Cas zupor Consider the circuit in the drawing. (R -2.0 , R2-15 .v1-35.0VJ (a) Determine the magnitude of the current in the circuit. (b) Determine the magnitude of the voltage between the points labeled A and B (c) Select which point, A or B, is at the higher potential. O point A O point B Section 20.10 2, 4 points CJ920 P083. My Notes Ask Your * In the drawing below. R1 has a resistance of 6.6 and R2 has a resistance of 2.542. Determine the current (magnitude and direction) in the 6.6 and 2.5- resistors in the drawing. Additional Materials Section 20.10 Submit Answer!.. Save Progress-J -Practice Another Version -1 points CJO 20 P 093 Two capacitors are connected in parallel across the terminals of a battery. One has a capacitance of 2.0 uF and the other a capacitance of 3.5 uF. These two capacitors together store 5.80 x 10-s C of charge. What is the voltage of the battery My Notes Ask Your Additional Materials Section 20.12

Explanation / Answer

1.

Using KVL in loop

10 + 12 i + 8 i + i (R1 + R2) - V1 = 0

10 + 12 i + 8 i + i (R1 + R2) - V1 = 0

10 + 12 i + 8 i + i (2 + 15) - 35 = 0

i = 0.67 A

b)

Va - V1 + i R1 = Vb

Va - Vb = V1 - i R1

Va - Vb = 35 - (0.67) (2) = 33.7 Volts

3.

C1 = 2 x 10-6 F

C2 = 3.5 x 10-6 F

parallel combination is given as

Cp = C1 + C2 = (2 x 10-6) + (3.5 x 10-6) = 5.5 x 10-6 F

V = potential difference = ?

U = energy stored = 5.80 x 10-5 J

Using the equation

U = (0.5) Cp V2

5.80 x 10-5 = (0.5) (5.5 x 10-6) V2

V = 4.6 Volts

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