COMPREHENSIVE QUESTION AND VERIFIED ANSWERS
GRADED A+
Which symbol is used for ohms of resistance? - (correct answer)Ω
A unit of energy is the: - (correct answer)Joule
Minute particles that make up all possible elements and still retain the unique
chemical characteristics of the element are called: - (correct answer)atoms
A component whose value is measured in microfarads is a: - (correct
answer)capacitor
Kirchoff's Voltage Law (KVL) states that the total voltage around a closed loop must be
zero. - (correct answer)True
The pole of the magnet from which the flux leaves is called the _______ pole. - (correct
answer)north
Safety precautions to be taken when working on high voltage equipment include which
of the following? - (correct answer)All jewelry should be removed
Which metric prefix would be used to represent 1 x 10⁻³ - (correct answer)Milli
An electron has: - (correct answer)a negative charge
Total power in a series circuit equals the: - (correct answer)sum of the power
dissipated by each resistor
Invisible lines of force that surround a magnet are called: - (correct answer)magnetic
flux lines
The basic unit of electric power is the: - (correct answer)watt
With three 4.5 kΩ resistors and one 1.5 kΩ resistor in parallel, the total resistance is: -
(correct answer)750 Ω
The basic unit of length in the metric system is the: - (correct answer)meter
What two types of energy are used throughout electronics? - (correct answer)Kinetic
and potential
, Electrical direct current flowing in a wire produces a magnetic field: - (correct
answer)parallel to the wire
Battery cells are connected in parallel to: - (correct answer)increase current capacity
Which class of fire extinguisher is used on oil fires? - (correct answer)Class B
When the resistance of a series circuit decreases, ____________. - (correct
answer)total current increases
A material is magnetized when the: - (correct answer)domains are in alignment
If a series circuit has two 13 kΩ resistors with a source voltage of 10 V, the wattage is: -
(correct answer)3.85 mW
What does the M+ key on a calculator do? - (correct answer)sums the quantity on
screen to memory
The total current in a series-parallel circuit equals the: - (correct answer)sum of the
parallel branch circuit current
The ammeter setting on a multimeter indicates what type of reading? - (correct
answer)Current
In a series circuit, the current is _________. - (correct answer)the same in all parts of
the circuit
_______ force produces magnetic flux. - (correct answer)Magnetomotive
Calculate the current in the circuit below:
https://lh6.googleusercontent.com/pJLEK44RE1QIOD0SKYb1O2KsnIGwxNNJUaWp24wP
LWJDQw3QUqh9RpH7PHFA9JWOQb8uSRm6eg=w200 - (correct answer)6 Amps
A component whose value is measured in Ohms is a: - (correct answer)resistor
You should use caution when talking to someone who is operating electrical equipment
because the distraction: - (correct answer)could damage the equipment
could ruin an electronic device
both could be injured
all of the above
A material that can be magnetized easily falls into this category: - (correct
answer)Ferromagnetic