Posted by Joan on Sunday, March 13, 2011 at 2:32pm.
Three resistors (14.4 Ω, 21.7 Ω, 14.1 Ω) are connected in parallel across 98 V. What is the total resistance for this circuit? What is the voltage drop across the 21.7 Ω resistor? What current is flowing in the 14.1 Ω resistor? What is the total circuit current? What power is dissipated at the 14.4 Ω resistor?
- Physics - bobpursley, Sunday, March 13, 2011 at 3:33pm
I will be happy to critique your thinking.
- Physics - Anonymous, Wednesday, March 16, 2011 at 10:01am
- Physics - Anonymous, Wednesday, March 16, 2011 at 10:03am
- Physics - Henry, Thursday, May 14, 2015 at 7:30pm
E = 98 V.
R1 = 14.4 Ohms
R2 = 21.7 Ohms
R3 = 14.1 Ohms.
a. 1/Rt = 1/R1+1/R2+1/R3
1/Rt = 1/14.4 + 1/21.7 + 1/14.1 =
Rt = 5.36 Ohms
b. V1 = V2 = V3 = E = 98 V.
c. I3 = E/R3 = 98/14.1 = 6.95A
d. I = E/Rt = 98/5.36 = 18.3A
e. P1 = E^2/R1 = 98^2/14.4 = 667 Watts
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