Understanding Resistors in Electronics

What is the primary function of a resistor in electronic circuits?

• To impede the flow of electric current

• To decrease energy consumption

• To regulate voltage levels

• To increase current flow

Which type of through-hole resistor is known for better tolerance and stability?

• Solid carbon resistor

• Carbon film resistor

• Wire-wound resistor

• Metal film resistor

What does the color gold on a resistor's body typically represent?

• 5% tolerance

• 10% tolerance

• 1% tolerance

• No tolerance

How are SMD resistors typically attached to a circuit board?

• Using a special adhesive

• Soldered to wires

• Welded directly

• Attached to conductive pads

What does the 'R' in an SMD resistor code like '47R0' signify?

• Resistance value in ohms

• Decimal point

• Resistor type

• Reliability rating

Which resistor type is specifically designed to handle high power and heat dissipation?

• SMD resistor

• Wire-wound resistor

• Carbon film resistor

• Metal film resistor

What is the primary use of a potentiometer in electronic circuits?

• To convert energy forms

• To store electrical energy

• To act as a voltage divider

• To limit current flow

What type of material change does a thermistor exhibit in response to temperature changes?

• Capacitance

• Inductance

• Voltage

• Resistance

What is the function of a Light Dependent Resistor (LDR)?

• To store photons

• To change resistance based on light intensity

• To convert light into electrical signals

• To detect and respond to electrical changes

What triggers a VAR to change its resistance?

• Physical pressure

• Temperature fluctuations

• Light intensity

• Voltage surges