Q.1
On which of the following voltage range settings will a voltmeter present the minimum load on a circuit?
Q.2
Two 3.3 kΩ resistors are in series and this series combination is in parallel with a 4.7 kΩ resistor. The voltage across one of the 3.3 kΩ resistors is 12 V. The voltage across the 4.7 kΩ resistor is
Q.3
A voltage divider consists of two 100 kΩ resistors and a 12 V source. What will the output voltage be if a load resistor of 1 MΩ is connected to the output?
Q.4
A certain circuit is composed of two parallel resistors. The total resistance is 1,403 Ω. One of the resistors is 2 kΩ. The other resistor value is
Q.5
In a series–parallel circuit consisting of R1 and R2 in series and connected in parallel with Rif R1 opens, then R2's voltage will:
  • increase
  • decrease
  • remain the same
  • cannot tell
Q.6
A Wheatstone bridge can be used to determine an unknown
  • current
  • resistance
  • power
  • voltage
Q.7
If R1 is in series with a parallel combination of RRand Rwhen the resistance value of R2 increases, the voltage across R3 will
  • increase
  • decrease
  • remain the same
  • Cannot tell
Q.8
What determines if resistor connections are in series, parallel, or series–parallel?
  • the voltage source
  • the power source
  • resistance
  • current flow
Q.9
Components or combinations of components with common currents, in a series–parallel circuit, are in:
  • parallel with each other
  • series with each other
  • either series or parallel with each other
  • none of the above
Q.10
If a series–parallel circuit has all 30-ohm resistors, what is the total resistance when R1 is in series with a parallel circuit consisting of R2 and R3?
  • 10 ohms
  • 20 ohms
  • 45 ohms
  • 90 ohms
Q.11
The first goal(s) to accomplish in analyzing a complex series–parallel circuit is to:
  • equate all parallel components
  • equate all series components
  • solve for all the voltage drops
  • solve for the total current and resistance
Q.12
If R1 is in series with parallel connected to R2 and Rwhat happens to total current if R2 opens?
  • increases
  • decreases
  • remains the same
  • cannot tell
Q.13
The first goal to accomplish in analyzing a complex series-parallel circuit is to
  • equate all parallel components
  • equate all series components
  • solve for all the voltage drops
  • solve for the total current and resistance
Q.14
If a Wheatstone bridge is balanced, a voltmeter in the center of the bridge will read:
  • the same as the source voltage
  • half the source voltage
  • zero volts
  • twice the source voltage
Q.15
When placed into a circuit, how are electronic components usually connected?
  • positive terminal to positive terminal
  • in parallel
  • as a combination of series and parallel
  • in series
Q.16
WithV applied, if R1 = 5 ohms, R2 =ohms, and R3 =ohms, what is the current of R2 if R1 is series connected with parallel circuit R2 and R3?
  • 200 mA
  • 800 mA
  • 600 mA
  • 400 mA
Q.17
When a Wheatstone bridge is in a balanced condition, the center voltmeter in the bridge will read:
  • twice the source voltage
  • the same as the source voltage
  • zero volts
  • half the source voltage
Q.18
When a load is connected to a voltage divider, the total resistance of the circuit will:
  • decrease
  • double
  • increase
  • remain the same
Q.19
The current flowing through an unloaded voltage divider is called the:
  • resistor current
  • load current
  • bleeder current
  • voltage current
Q.20
In a series–parallel circuit, individual component power dissipations are calculated using:
  • individual component parameters
  • a percent of the voltage division ratio squared
  • total current squared multiplied by the resistor values
  • a percent of the total power depending on resistor ratios
0 h : 0 m : 1 s