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.
Kirchhoffs 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