Series Circuit Test
How many volts does it take to push 2 amperes of current through 20 ohms of resistance?
40
A circuit with resistive elements of 220, 100, 57, and 43 produce what total resistance?
420
What is the drop voltage across each resistor in a 24-volt battery that has four resistors?
6
A two-resistor series circuit has an applied voltage of 100 V. The voltage across one of the resistors is 40 V. What is the voltage across the other resistor?
60 V
A series circuit has a total resistance of 240 Ω and a current flow of 4 A. What is the applied voltage?
960 V
The current, voltage, power, and resistance in a series circuit can be calculated using _____ law.
Ohm's
When a circuit has only one path, the _____ is the same at any point.
current
In the case of an automobile electric system, the chassis of the vehicle is the ___________ side of the circuit.
negative
It is often necessary to know the ________ of the voltage dropped across a resistor?
polarity
Which of the following formulas is the general voltage divider formula?
Ex=(Rx/Rt)Et
Which is the accepted symbol that represents a chassis ground?
a
Which symbol represents an Earth ground?
b
What device is designed to open and disconnect a circuit in the event of excessive current?
fuse
In a circuit, it is assumed the current flows from the negative terminal of a battery to the positive terminal. This means that Point A would be connected to the __________ battery terminal.
negative
The total power in a circuit is equal to the sum of the _____ used by all parts.
power
In a series circuit, each resistor ______________ the flow of current in the circuit.
impedes
A circuit that has only one path for current flow is a _____ circuit.
series
A three-resistor circuit has a total power of 25 W. Two of the resistors dissipate 10 W and 5 W, respectively. How much power does the third resistor dissipate?
10 W
A series circuit has two resistors that dissipate 10 W and 15 W, respectively. What is the total power dissipation of the circuit?
25 W
A series circuit has a total resistance of 180 Ω and an applied voltage of 120 V. What is the current flow?
0.667 A
When three resistors are connected in series to a 36-V source, with each resistor having a resistance of 200, 300, and 160, what is the first step in calculating the voltage drop across each resistor?
Find the total resistance of the circuit.
A point that is used as a common connection for other parts of a circuit not actually driven into the ground is called a _____ ground.
chassis
A voltage _____ is used to provide different voltages between certain points in a circuit.
divider
To symbolize a ground point made by physically driving an object such as a rod or pipe into the ground, a(n) _____ ground symbol is used.
earth
One of the rules for Ohm's law when finding values of voltage, current, resistance, and power in a series circuit is that the applied voltage is not equal to the sum of the voltage drops across all the resistors.
false
In a one- terminal zero-center voltmeter connected to ground and the probe connected to a Point A, the pointer of the voltmeter gives a ________ indication for voltage.
negative
By observing the direction of current flow through the circuit, voltage _____ can be determined.
polarity
In a one- terminal zero-center voltmeter connected to ground and the probe connected to a Point B, the pointer of the voltmeter gives a ________ indication for voltage.
positive
One of the rules for Ohm's law when finding values of voltage, current, resistance, and power in a series circuit is that the current is the same at any point in the circuit.
true
What insulates an automobile?
rubber tires
What force pushes the electrons through a resistance in a circuit?
voltage
The amount of _____ across a resistor is proportional to its resistance and the circuit current.
voltage drop
What is the applied voltage in a series circuit with two resistors of 25 V and 60 V, respectively?
85 V
In a series circuit, the sum of the voltage drops is _____ the applied voltage.
equal to
In an electronic burglar alarm, when the circuit is connected, all the _________ points will be connected together.
ground