Consider the circuit shown in the figure, where ɛ, = 21.7 V, E, = 11.3 V, and R = 14.0 Q. (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) 28.0 N 12.0 N R (a) What is the current (in A) in each resistor? 4 = 51 Apply Kirchhoff's junction and loop rules to the circuit to find three separate equations in terms of the unknown currents, and solve your system for I,, I, and/or I,. A I, = 2.1 Apply Kirchhoff's junction and loop rules to the circuit to find three separate equations in terms of the unknown currents, and solve your system for I2, and/or I3. A I3 = 2.6 Apply Kirchhoff's junction and loop rules to the circuit to find three separate equations in terms of the unknown currents, and solve your system for I,, I,, and/or I. A (b) What is the power (in W) delivered to each resistor? P, = 93 Apply the equation relating power, resistance, and current, and use your results from part (a) to calculate the power delivered to each resistor. w P, = P3 = w (c) What is the total power (in W) supplied by both batteries? (d) What is the relationship between the total power supplied by the batteries and the power delivered to each resistor? O The total power supplied by the batteries equal to the sum of the power delivered to each resistor. O The total power supplied by the batteries greater than the sum of the power delivered to each resistor. O The total power supplied by the batteries less than the sum of the power delivered to each resistor.
Consider the circuit shown in the figure, where ɛ, = 21.7 V, E, = 11.3 V, and R = 14.0 Q. (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) 28.0 N 12.0 N R (a) What is the current (in A) in each resistor? 4 = 51 Apply Kirchhoff's junction and loop rules to the circuit to find three separate equations in terms of the unknown currents, and solve your system for I,, I, and/or I,. A I, = 2.1 Apply Kirchhoff's junction and loop rules to the circuit to find three separate equations in terms of the unknown currents, and solve your system for I2, and/or I3. A I3 = 2.6 Apply Kirchhoff's junction and loop rules to the circuit to find three separate equations in terms of the unknown currents, and solve your system for I,, I,, and/or I. A (b) What is the power (in W) delivered to each resistor? P, = 93 Apply the equation relating power, resistance, and current, and use your results from part (a) to calculate the power delivered to each resistor. w P, = P3 = w (c) What is the total power (in W) supplied by both batteries? (d) What is the relationship between the total power supplied by the batteries and the power delivered to each resistor? O The total power supplied by the batteries equal to the sum of the power delivered to each resistor. O The total power supplied by the batteries greater than the sum of the power delivered to each resistor. O The total power supplied by the batteries less than the sum of the power delivered to each resistor.
Chapter10: Direct-current Circuits
Section: Chapter Questions
Problem 45P: A child's electronic toy is supplied by three 1.58-V alkaline cells having internal resistances of...
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Transcribed Image Text:Consider the circuit shown in the figure, where E, = 21.7 V, E, = 11.3 V, and R = 14.0 Q. (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in
%3D
WebAssign.)
28.0 N
+
E2
12.0 N
+
I3
R
(a) What is the current (in A) in each resistor?
.51
=
Apply Kirchhoff's junction and loop rules to the circuit to find three separate equations in terms of the unknown currents, and solve your system for I,, I,, and/or I2. A
2.1
I2
Apply Kirchhoff's junction and loop rules to the circuit to find three separate equations in terms of the unknown currents, and solve your system for I,, I, and/or I2. A
2'
I3
= 2.6
Apply Kirchhoff's junction and loop rules to the circuit to find three separate equations in terms of the unknown currents, and solve your system for I,, I, and/or I2. A
3'
2'
(b) What is the power (in W) delivered to each resistor?
P1
93
Apply the equation relating power, resistance, and current, and use your results from part (a) to calculate the power delivered to each resistor. W
P2
W
P3
W
%D
(c)
What is the total power (in W) supplied by both batteries?
W
(d) What is the relationship between the total power supplied by the batteries and the power delivered to each resistor?
The total power supplied by the batteries is equal to the sum of the power delivered to each resistor.
The total power supplied by the batteries is greater than the sum of the power delivered to each resistor.
The total power supplied by the batteries is less than the sum of the power delivered to each resistor.
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