Final Review
Problem 1. Conceptual Problems
a)
In the circuit below, resistor R is increased. What happens to the following
quantities? (Circle the appropriate answer.)
V
R1
R
R2
R3
•
Power dissipated in R1
increases
decreases
stays the same
•
Power dissipated in R2
increases
decreases
stays the same
•
Power supplied by voltage source
increases
decreases
stays the same
•
Voltage across R3
increases
decreases
stays the same
b)
Find the power associated with each element in the circuit below. State whether
each source is supplying or absorbing power.
10V
5A
2I
1
5V
1
10A
I
1

V
1
+
Element
Voltage
Current
Power
Absorbed or
delivered
5A source
60.0V
5.00A
0.300kW
delivered
Dependent
source 5V
1
50.0V
5.00A
0.250kW
delivered
Dependent
source 2i
1
10.0V
10.0A
0.100kW
absorbed
10V source
10.0V
5.00A
50.0W
delivered
10A source
50.0V
10.0A
0.500kW
absorbed
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document