3.7 Resistor and Resistance

What determines the amount of current that flows through a circuit under a given voltage?

• The material of the conductor
• The resistance of the conductor
• The length of the conductor

What happens to the current if the resistance in a circuit is reduced?

• The current increases
• The current decreases
• The current remains the same

How is the relationship between current and voltage described in Ohm's law?

• Exponential
• Linear
• Non-linear

Which equation represents resistance according to Ohm's law?

• R = E / I
• R = I / E
• R = E × I

Which of the following is a factor that does NOT affect the resistance of a conductor?

• Length of the conductor
• Cross-sectional area of the conductor
• Color of the conductor

How does the resistance of a metallic conductor change with its length?

• It is inversely proportional
• It remains the same
• It is directly proportional

Which material shows a decrease in resistance as the ambient temperature increases?

• Copper
• Carbon
• Aluminium

How does specific resistance relate to the material's shape and size?

• It is dependent on the shape and size
• It is independent of the shape and size
• It is directly proportional to the shape

Which of the following is the same through all the conductors in a series circuit?

• Voltage drop
• Current
• Resistance

What happens to the voltage drop across each resistor in a series circuit?

• It is the same across all resistors
• It is different for each resistor
• It is zero