For this question nlease first write the values in svmbolic form for each part,

Question

For this question nlease first write the values in svmbolic form for each part, A student constructed the circuit shown in the figure below. R1 = 5.00 , R2-800 R3-4.00 12 and = 34.0 V. (a) Calculate equivalent resistance for this circuit. (b) What are the values for the currents through battery and R3? (c) How much is the potential across R3? (d) What is the potential difference between points a and b? (e) Calculate current through R1? (f) What is the current through resistor R2? (15 points) 4. 8 , Ct 34.0

Explanation / Answer

R1 and R2 are in parallel

R = R1 R2 / (R1 + R2)

= 5*8 / (5 +8) = 3.07 ohm

R and R3 are in series

R(equi) = 3.07 + 4 = 7.07 ohm

b) V = IR

I = 34/7.07 = 4.8 A

c) Potential across R3 = I*R3 = 4.8*4 = 19.2V

d) potential difference across point a and b = 4.8*3.07 = 14.74 V

e) current through R1 = 4.8*8 / (8 + 5) = 2.95 A

f) current through R2 = 4.8*5 / (8 + 5) = 1.85 A

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