Resistors and parameters Quiz Practice Quiz…

Q: What is the unit of measurement for electrical resistance?

Ohm (?) — Resistance is measured in Ohms.

Q: Which of the following describes the relationship between voltage (V), current (I), and resistance (R)?

V = I*R — This is Ohm's Law: Voltage equals current times resistance.

Q: What is the color code for a 1 k? resistor with 5% tolerance?

Brown, Black, Brown, Gold — Brown=1, Black=0, Brown=1 (multiplier), Gold=5% tolerance.

Q: What is the power rating of a resistor, and what does it indicate?

The amount of heat the resistor can dissipate safely. — Power rating indicates the heat dissipation capacity.

Q: What is the temperature coefficient of a resistor?

The change in resistance per degree Celsius change in temperature. — It quantifies resistance change with temperature.

Q: Which type of resistor is often used for high-precision applications?

Thin-film resistor — Thin-film resistors offer better precision and stability.

Q: What happens to the resistance of a conductor as its temperature increases?

It increases. — Generally, resistance increases with temperature for most conductors.

Q: What is a potentiometer?

A variable resistor that allows adjustment of resistance. — A potentiometer is a type of variable resistor.

Q: What is the tolerance of a resistor?

The percentage deviation from the nominal resistance value. — Tolerance specifies the acceptable variation in resistance.

Q: How are resistors connected in a series circuit?

End to end, with current flowing through each resistor. — Series connections share the same current path.

Question 1 of 15

What is the unit of measurement for electrical resistance?

Resistance is measured in Ohms.

Question 2 of 15

Which of the following describes the relationship between voltage (V), current (I), and resistance (R)?

This is Ohm's Law: Voltage equals current times resistance.

Question 3 of 15

What is the color code for a 1 k? resistor with 5% tolerance?

Brown=1, Black=0, Brown=1 (multiplier), Gold=5% tolerance.

Question 4 of 15

What is the power rating of a resistor, and what does it indicate?

Power rating indicates the heat dissipation capacity.

Question 5 of 15

What is the temperature coefficient of a resistor?

It quantifies resistance change with temperature.

Question 6 of 15

Which type of resistor is often used for high-precision applications?

Thin-film resistors offer better precision and stability.

Question 7 of 15

What happens to the resistance of a conductor as its temperature increases?

Generally, resistance increases with temperature for most conductors.

Question 8 of 15

What is a potentiometer?

A potentiometer is a type of variable resistor.

Question 9 of 15

What is the tolerance of a resistor?

Tolerance specifies the acceptable variation in resistance.

Question 10 of 15

How are resistors connected in a series circuit?

Series connections share the same current path.

Question 11 of 15

How are resistors connected in a parallel circuit?

Parallel resistors have the same voltage across them.

Question 12 of 15

What is the equivalent resistance of two 100-ohm resistors connected in parallel?

For equal parallel resistors: R_eq = R/N

Question 13 of 15

What happens to the total resistance when you add more resistors in series?

Series resistance adds up.

Question 14 of 15

Which of the following resistor types is least affected by ambient temperature changes?

Metal film resistors are known for their temperature stability.

Question 15 of 15

What does 'wattage' indicate in a resistor's specifications?

Wattage is the power rating, indicating the heat handling capacity.

Resistors and parameters Quiz