ECET 201 Midterm Test Questions All
Answered Correct 2026.
The atomic number is the number of - Answer protons in the nucleus
Valence electrons are - Answer electrons in the outermost shell
involved in chemical reactions
loosely bound
The atomic particle responsible for electrical current in solid metallic conductors is that -
Answer electron
The symbol for charge is - Answer Q
A battery stores - Answer chemical energy
The unit of conductance is the - Answer siemen
A four-color resistor with the color bands gray-red-black-gold is - Answer 82
A 330kW+- 5% resistor has the color bands - Answer orange-orange-yellow-gold
The circular mil is a unit of - Answer area
Holding the voltage constant, and plotting the current against the resistance as resistance is
varied will form a - Answer hyperbola
When the current is plotted against the voltage for a fixed resistor, the plot is a - Answer
straight line with a positive slope
For constant voltage in a circuit, doubling the resistance means - Answer halving the current
A four-color resistor has the color-code red-violet-orange-gold. If it is placed across a 12 V
source, the expected current is - Answer 0.44 mA
, If the current in a 330 W resistor is 15 mA, the applied voltage is approximately - Answer 5.0
V
The current in a certain 4-band resistor is 22 mA when the voltage is 18 V. The color bands on
the resistor are - Answer gray-red-brown-gold
Before troubleshooting a faulty circuit you should find out - Answer the conditions that
existed when it failed
the symptoms of the failure
if the circuit ever worked
A troubleshooting method that starts in the middle and works toward a fault is - Answer half-
splitting
A unit of power is the - Answer Watt
The SI unit of energy is the - Answer Joule
If the voltage in a resistive circuit is doubled, the power will be - Answer Quadrupled
The smallest power rating you should use for a resistor that is 330 W with 12 V across it is -
Answer 1/2 W
The power dissipated by a light operating on 12 V that has 3 A of current is - Answer 36 W
The power rating of a resistor is determined mainly by - Answer surface area
A battery rated for 20 Ah can supply 2 A for a minimum of - Answer 10 hours
The efficiency of a power supply is determined by - Answer output power divided by input
power
In a series circuit with more than one resistor, the current is - Answer always the same in all
resistors
Answered Correct 2026.
The atomic number is the number of - Answer protons in the nucleus
Valence electrons are - Answer electrons in the outermost shell
involved in chemical reactions
loosely bound
The atomic particle responsible for electrical current in solid metallic conductors is that -
Answer electron
The symbol for charge is - Answer Q
A battery stores - Answer chemical energy
The unit of conductance is the - Answer siemen
A four-color resistor with the color bands gray-red-black-gold is - Answer 82
A 330kW+- 5% resistor has the color bands - Answer orange-orange-yellow-gold
The circular mil is a unit of - Answer area
Holding the voltage constant, and plotting the current against the resistance as resistance is
varied will form a - Answer hyperbola
When the current is plotted against the voltage for a fixed resistor, the plot is a - Answer
straight line with a positive slope
For constant voltage in a circuit, doubling the resistance means - Answer halving the current
A four-color resistor has the color-code red-violet-orange-gold. If it is placed across a 12 V
source, the expected current is - Answer 0.44 mA
, If the current in a 330 W resistor is 15 mA, the applied voltage is approximately - Answer 5.0
V
The current in a certain 4-band resistor is 22 mA when the voltage is 18 V. The color bands on
the resistor are - Answer gray-red-brown-gold
Before troubleshooting a faulty circuit you should find out - Answer the conditions that
existed when it failed
the symptoms of the failure
if the circuit ever worked
A troubleshooting method that starts in the middle and works toward a fault is - Answer half-
splitting
A unit of power is the - Answer Watt
The SI unit of energy is the - Answer Joule
If the voltage in a resistive circuit is doubled, the power will be - Answer Quadrupled
The smallest power rating you should use for a resistor that is 330 W with 12 V across it is -
Answer 1/2 W
The power dissipated by a light operating on 12 V that has 3 A of current is - Answer 36 W
The power rating of a resistor is determined mainly by - Answer surface area
A battery rated for 20 Ah can supply 2 A for a minimum of - Answer 10 hours
The efficiency of a power supply is determined by - Answer output power divided by input
power
In a series circuit with more than one resistor, the current is - Answer always the same in all
resistors
