EGR203 Electric/Electronic Circuits Assignment 1 (b)
- Given the following circuit, use mesh analysis to find ia,
ib. ic. and Vx. (Rizzoni 2.55)
R0 | R1
| R2
| R3 | Vs
|
2 Ω | 1 Ω | 4/3 Ω | 6 Ω | 12 V
|
- Repeat the previous problem given (Rizzoni 2.56):
R0 | R1
| R2
| R3 | Vs
|
2 Ω | 2 Ω | 5 Ω | 4 Ω | 24 V
|
Note the minor typo in Rizzoni 2.56 and 2.57.
- Assume that the voltage source in the previous circuit is
now replaced by a current source. Determine the currents ia,
ib. ic. and voltages Vx
and Vy. (Rizzoni 2.57):
R0 | R1
| R2
| R3 | Is
|
1 Ω | 3 Ω | 2 Ω | 4 Ω | 12 A
|
- Find the equivalent resistance of the circuit below by combining resistors
in series and parallel. Assume R0 = 4 Ω, R1 = 12 Ω,
R2 = 8 Ω, R3 = 2 Ω, R4 = 16 Ω,
and R5 = 5 Ω. (Rizzoni 2.59)
- Find the equivalent resistance of the circuit below and the current I.
Assume VS = 12 V, R0 = 4 Ω, R1 = 2 Ω,
R2 = 50 Ω, R3 = 8 Ω, R4 = 10 Ω,
R5 = 12 Ω, and R6 = 6 Ω. (Rizzoni 2.60)
- Your resistor is color coded yellow-violet-red. What is its
nominal resistance?
- Suppose we measured a resistance of
about 1.4 Ω across a graphite stick, used calipers to
measure the cross-section of the stick (7 mm by 5 mm) and measured
the distance between the multimeter test leads (54 mm). Based on these
measurements, calculate the bulk resistivity of the graphite stick.
- Given a resistor of 80 Ω connected to a
12 V battery, find the power absorbed by the resistor. What are the
consequences if the resistor is rated at one-quarter watt?
- Suppose we have a 330-Ω resistor rated at one-half watt.
What is the maximum voltage we can apply to the resistor without
exceeding its power rating?
- Suppose your multimeter is fused for 300 mA. You want to
measure current through a resistor via a 9-volt battery. What is the
minimum resistance such that the current is less than 150 mA?
Maintained by John
Loomis, last updated 8 September 2014