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WorksheetsAnalog Electronics - Topics 1
Total questions: 10
Worksheet time: 5mins
What is function of a resistor in an electronic circuit?
A tool used to connect circuits
A device used to generate heat
An item used to control current flow in a circuit
A machine used to amplify voltage
What is the power rating of a resistor?
The maximum amount of power or heat that the resistor can dissipate without burning up or changing value
The minimum amount of power or heat that the resistor needs to function
The amount of current that flows through the resistor
The amount of voltage that the resistor generates
What is the formula for finding the total resistance of two resistors connected in parallel?
R = R1 + R2
R = R1 x R2
R = 1 / (1/R1 + 1/R2)
R = R1 - R2
What is the formula for finding the total resistance of resistors connected in series?
R = R1 + R2 + R3 + R4 + ...
R = R1 x R2 x R3 x R4 x ...
R = R1 - R2 - R3 - R4 - ...
R = R1 / R2 / R3 / R4 / ...
What is the resistor color code?
The value in ohms of a resistor is indicated by the color bands around one end of the resistor or printed on its body.
The value in ohms of a resistor is indicated by the number of bands around one end of the resistor or printed on its body.
The value in ohms of a resistor is indicated by the color of the resistor's body.
The value in ohms of a resistor is indicated by the size of the resistor.
What is the difference between a rheostat and a potentiometer?
A rheostat has all three connections in use, while a potentiometer has only two.
A rheostat is used to adjust the color or positioning of computer monitors, while a potentiometer is used in dimming switches for lamps.
A rheostat adjusts one end of the track, while a potentiometer adjusts both ends.
A rheostat is used in circuits that require further adjustment, while a potentiometer is a miniature version called a preset.
What is the purpose of a variable resistor?
To limit current
To divide voltage
To generate heat
To change its resistance value
What type of resistor has a set resistance value that cannot be changed?
Variable resistor
Rheostat
Potentiometer
Fixed resistor
What are the two main categories of resistors?
Fixed and adjustable
Conductive and insulative
High and low voltage
Carbon and film
What is the unit of resistance?
Hertz
Ohms
Watts
Amps
