Chapter 1: Resistors
C) 63,500 ohms
A resistor is color-coded blue, red, orange, and gold. The resistor value is in tolerance if it is measured as: A) 56,000 ohms B) 68,250 ohms C) 63,500 ohms D) 58,000 ohms
D) Zero
What is the current flow from point A to point B in Figure 3?
B) -2.0 volts
A meter connected across R2 in Figure 4 will measure: A) 6 volts B) -2.0 volts C) -2.4 volts D) +2.4 volts
A) Rheostats are current-controlled devices; pots are voltage-controlled devices.
Comparing potentiometers and rheostats; A) Rheostats are current-controlled devices; pots are voltage-controlled devices. B) Rheostats and potentiometers are both voltage-controlled devices. C) Rheostats and potentiometers are both current-controlled devices. D) Rheostats are voltage-controlled devices, potentiometers are current-controlled devices.
C) R2 is open
Current in R1 is 1A in Figure 10. Current in R2 is zero. Why? A) R1 is open B) R1 is shorted C) R2 is open D) R2 is shorted
R1: 50volts, 50ohms, 1A R2: 50volts, 25ohms, 1A R3: 50volts, 100ohms, 0.5A R4: 50volts, 12.5ohms, 4A Source: 50volts
Fill in the applied voltage, individual voltage drops, individual currents, and individual resistor values in Figure 5.
D) R1 and R2 are open
Our meter measures zero volts across each of our resistors in Figure 9. What's up? A) R1 is open B) R2 s open C) R3 is open D) R1 and R2 are open
D) R3 is shorted
Our voltmeter measures the potential across R1, R2, and R3 in Figure 8. The voltages are 10 volts, 10 volts, and zero volts, respectively. The problem is: A) R1 is open B) R2 is open C) R1 and R2 are open D) R3 is shorted
C) The same as that through R1.
The current through R2 in Figure 4 is: A) 40% of that through R1. B) 60% of that through R1. C) The same as through R1. D) 0.57 volts.
C) Orange, Red, Green, Black
The first 4 colors of the five band precision color code for R1 in Figure 1 are: A) Orange, Green, Red, Blue B) Orange, Red, Green C) Orange, Red, Green, Black D) Orange, Red, Green, Gold
D) R3 is open
We connect a voltmeter across R3 in Figure 12. It measures 10 volts. The meter is then connected across R2. It measures zero. The potential across R1 is also zero volts. What is the problem? A) R1 is open B) R1 is shorted C) R2 is open D) R3 is open
A) 1.2 Watts
What is the power dissipated by R1 in Figure 1?
A) Yellow, Orange Black, Silver B) Green, White, Red, Gold C) White, Orange, Gold, Gold
What is the proper color-coding for each of the resistors indicated? A) 43 ohms, +- 10% (four band resistor) B) 5900 ohms, +- 5% (four band resistor) C) 9.3 ohms, +- 5% (four band resistor)
C) 300 Watts
What is the total power dissipated in Figure 11? A) 250 Watts B) 500 Watts C) 300 Watts D) 30 Watts
B) 34.4 ohms
What is the total resistance offered by the circuit of Figure 2?
D. 6 Amps
What is the value of (CURRENT) of R2 in Figure 7? A) 4 amps B) 8 amps C) 2 amps D) 6 amps
A) 40 ohms
What is the value of R1 in Figure 6? A) 40 ohms B) 20 ohms C) 10 ohms D) 30 ohms
C) 4.8 volts
What is the voltage across R4 in Figure 2?
A) 5,500,000 +- 10% ohms B) 29,000,000 +- 5% ohms C) 100 +- 20% ohms
What resistor values are indicated by the following color codes? A) Green, Green, Green, Silver B) Red, White, Blue, Gold C) Brown, Black, Brown, Black
A) 2.7 ohms B) 230K (230,000) ohms C) 35M (35,000,000) ohms D) 325 ohms
What surface mount resistor values are indicated by the following markings? A) 2R7 B) 234 C) 35M D) 3250
