Inv4.Exp3 Total C

What is a conductor?

• A material that prevents electron movement
• A material containing electrons or charged ions that can move easily
• A material with no electrical properties
• A material that only conducts heat

What is produced when the terminals of a battery are connected to two parallel conducting sheets?

• A magnetic field
• A uniform electric field
• A thermal gradient
• An electromagnetic wave

In a conductor, what causes the "electric friction" effect?

• Electron collisions with metal atom electron clouds
• Direct collisions between metal atoms
• Thermal vibrations in the wire
• Magnetic field interference

The drift velocity in a conductor is:

• Always increasing
• Variable and unpredictable
• Zero
• Constant on average

What is the unit for electric current?

• Volt
• Watt
• Ampere
• Ohm

How many Coulombs per second equal one ampere?

• 10
• 0.1
• 1
• 100

Which of the following is an intensive property?

• Wire length
• Total resistance
• Resistivity
• Wire mass

Current density is:

• A scalar quantity
• An imaginary number
• A vector quantity
• A constant value

According to Ohm's law:

• Current is inversely proportional to electric field
• Current is independent of electric field
• Current is proportional to electric field
• Current is exponentially related to electric field

When resistors are connected one after another, this arrangement is called:

• A parallel combination
• A series combination
• A hybrid combination
• A mixed combination