Q.1

A series circuit consists of a 4.7 k, ak, and a 2.2 k resistor. The resistor that has the most voltage drop is

  • the 12 k
  • the 2.2 k
  • the 4.7 k
  • impossible to determine from the given information
Q.2

Two 6 V batteries are connected series aiding across two 1.2 k resistors in series. Current through each resistor is

  • 5 mA
  • 10 mA
  • 0 A
  • 2.5 mA
Q.3

All the voltage drops and the source voltage added together in a series circuit is equal to

  • the total of the voltage drops
  • the source voltage
  • zero
  • the total of the source voltage and the voltage drops
Q.4

All the voltage drops and the source voltage added together in a series circuit is equal to

  • the total of the voltage drops
  • the source voltage
  • zero
  • the total of the source voltage and the voltage drops
Q.5

Two 6 V batteries are connected series aiding across two 1.2 k resistors in series. Current through each resistor is

  • 5 mA
  • 10 mA
  • 0 A
  • 2.5 mA
Q.6
__________ remains the same in a series circuit.
  • Resistance
  • Voltage
  • Current
  • Power
Q.7
What causes a decrease in current?
  • Adding another bulb
  • increasing resistance
  • decreasing voltage from the supply
  • All of above
Q.8
With aV source, voltage is divided across 3 series resistors ofV,V, and:
  • 30 V
  • 270 V
  • 320 V
  • 900 V
Q.9
A series circuit schematic is recognized because all the components are connected:
  • diagonally across the page
  • in a uniform vertical manner
  • end to end in a "string"
  • horizontally across the page
Q.10
If series resistors dissipatemW,mW,mW, andmW, what is the total power consumed by the circuit?
  • 128 mW
  • 269 mW
  • 512 mW
  • 1024 mW
Q.11
If two resistors have the same voltage drop in a series circuit, it means:
  • they are connected in parallel
  • they are of unequal value
  • the voltage has doubled
  • they are of equal value
Q.12
What determines the total resistance in a series circuit?
  • the largest resistor
  • the sum of the resistors
  • the largest resistor minus the smaller
  • the smallest resistor
Q.13
If 5 V andV power supplies are connected in series-opposing, what is the total voltage?
  • 11 V
  • 16 V
  • 21 V
  • 80 V
Q.14
A series circuit current:
  • remains the same through each component
  • is the same as the individual resistances
  • is subtracted by each component
  • varies through each component
Q.15
Which equation determines individual resistor voltage drop?
  • V x R
  • I2 x R
  • V x I
  • I x R
Q.16
How will an open resistor affect a series circuit?
  • Current will flow around the open resistor.
  • The open resistor will drop 0 V.
  • Total resistance will decrease.
  • No current will flow in the circuit.
Q.17
The voltage drop across a series resistor is proportional to what other value?
  • total resistance
  • its own resistance
  • wattage rating
  • the amount of time the circuit is on
Q.18
Resistance in a series circuit will:
  • control the voltage
  • double the current
  • halve the power
  • oppose current
Q.19
When a battery is connected to a series circuit, it delivers current based only upon:
  • primary/secondary difference
  • total resistance
  • the polarity connections
  • average resistance
Q.20
In a series circuit, the voltage measured across a short will be:
  • source voltage
  • infinite voltage
  • zero volts
  • the normal voltage drop
Q.21
WithV applied, an 8-ohm resistor is in series with a lamp. When the lamp is removed, what voltage will be read across the lamp socket?
  • 0 V
  • 8 V
  • 12 V
  • 20 V
Q.22
Given a series circuit containing resistors of different values, which statement is not true?
  • The current through each resistor is the same.
  • The sum of the voltage drops across each resistive element will be equal to source voltage.
  • The total resistance is the sum of the value of the resistors.
  • The voltage drop across each resistor is the same.
Q.23
A string of resistors in a series circuit will:
  • divide the source voltage in proportion to their values
  • reduce the power to zero
  • cause the current to divide
  • increase the source voltage in proportion to the values
Q.24
If three resistors of 1.5 kilohms,ohms, andohms are in series with a 25-volt source, what is the total circuit current?
  • 210 mA
  • 5.2 mA
  • 4.7 mA
  • .007 A
Q.25
A short circuit has:
  • too much resistance
  • no conductance
  • no resistance
  • low current
Q.26
If series current doubles, then:
  • resistance is halved
  • voltage is doubled
  • voltage is reduced
  • resistance is doubled
Q.27
Kirchhoff’s voltage law states that:
  • the sum of the voltage drops in a series circuit is equal to the total applied voltage
  • the algebraic sum of the resistances is equal to the sum of the voltages
  • the algebraic sum of the individual currents around a closed loop is zero
  • the voltages developed across each element in a series circuit are identical
Q.28
An 8-ohm resistor is in series with a lamp. The circuit current is 1 A. WithV applied, what voltage is being allowed for the lamp?
  • 4 V
  • 8 V
  • 12 V
  • 20 V
Q.29
With a total resistance ofohms and aV source, if R3 isohms, what will be its voltage drop?
  • 16.36 V
  • 32.72 V
  • 10.90 V
  • 15.00 V
Q.30
Power is defined as:
  • the rate at which work is done
  • work
  • the conversion of energy
  • joules
0 h : 0 m : 1 s