The unit and symbol for voltage is:
The unit and symbol for current is:
The unit and symbol for resistance is:
The unit and symbol for power is:
The concept of electron flow on a conductor can best be described as:
Resistance can best be described as:
Voltage can best be described as:
Choose a good conductor from the list below:
Choose a good semi-conductor from the list below:
Choose a good insulator from the list below.
The magnetic force which exists between any two objects that are similarly charged is:
The magnetic force which exists between any two objects that are oppositely charged is:
A lead-acid storage battery is an example of which method of producing electricity?
An alternator or a generator would be good examples of which method of producing electricity?
A good example of mutual induction in an automobile electrical system is:
The state of the tail light switch shown is such that one of the following terms could be applied to this circuit:
Which of the following is closer to the description of a series circuit?
Calculate the total resistance of three resistors which are 60 ohms, 60 ohms and 15 ohms connected in parallel.
Calculate the current flowing in a circuit if the load is three resistors of 150 ohms, 450 ohms, and 120 ohms, connected in series to a 24 volt supply:
If the supply voltage is 12 volts, the current flow is 8 amps, what is the resistance?
Load devices are normally connected in parallel so that:
Which of the following correctly represents the magnetic laws of attraction and repulsion?
Relays and solenoids all depend upon the principle of:
The magnetic field (EMF) that is found near a current-carrying conductor moves:
The rule that determines the direction of the magnetic field of a current-carrying conductor is:
How can a current-carrying wire be used to form a practical electromagnetic?
What advantages do electromagnets have over permanent magnets?
What determines the polarity of an electromagnet?
Two coils are wound in the same direction, each with the same number of turns and are connected to the same source. One coil has an air core and the other an iron core. The iron core causes:
To identify an electrical meter which is to be used to measure resistance, the meter face will be marked:
A milli volt is:
Basic ammeters are connected in _________________ with the circuit:
To correctly measure the potential difference across a resistor in a circuit, a voltmeter is connected:
If an analog ohmmeter is manually set before use to read below zero, them in use the meter will read:
Calculate the value of the resistance in an engine''s block heater circuit if the ammeter reads 7.5 amperes and the voltmeter reads 120 volts.
Electrical current is describe as the flow of tiny particles called:
1. Magnets can cause electrons to flow in a conductor. 2. Electron flow in a conductor can produce magnetism. Of these two statements:
If excessive current flows through a fuse, the metal strip melts and:
Equipment marker lights are wired in series.
A dim light on a vehicle may be caused by a poor ground.
Voltage drop in a circuit may be caused by:
When disconnecting a battery from a charger you should always:
Series circuits have ____________ path for current flow.
Each resistor in a series circuit will cause a ____________ drop across itself:
The voltage drop across resistors in a basic parallel circuit will ____________ the battery voltage.
The force needed to cause current to flow in a circuit is called:
An electromagnet''s strength may be increased by:
If resistance is doubled and the voltage remains the same:
A short can be considered to be "copper to copper" in a circuit.
While testing a solenoid coil, an ohmmeter reads an infinite or O.L. reading on the auto range setting. What is likely to be the problem?
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