Current

Drift velocity is

• The average velocity with which the electrons are drifted towards the positive terminal of the battery.

• Velocity of an electron in a conductor

• Average thermal velocity

• None of these

Current is related to the drift velocity

• Current is directly proportional to the drift velocity

• Current is inversely proportional to drift velocity

• Current does not depend upon the drift velocity

• Current it depends on the the square of drift velocity

Average velocity of an electron inside a conductor when the battery is not connected across it, is

• Zero

• 10^5

• 1

• Cannot be determined as the number of electrons are very large

If we increase the number of free electrons in a conductor then

• Current increases if drift velocity is same

• Current decreases drift velocity is same

• Current remain same as it doesn't depend upon the number of free electrons

• Current decreases because the drift velocity decreases

current that flows through a circuit from the positive terminal of a battery through the circuit to the negative terminal of the battery

• drift acceleration
• drift velocity
• conventional current
• current density

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

• 1 Ohm
• 3 Ohms
• 4 Ohms
• 12 Ohms

Tags

CCSS.7.NS.A.1C

If the Voltage is increased and the resistance stays the same, Current will

• Increase
• Decrease
• Stay the same
• X

If the Voltage stays the same and Resistance is increased, Current will 

• Increase
• Decrease
• Stay the same
• X

10) If you increase the size of the resistor and keep the voltage the same, what will happen to the current?

• The current will decrease

• The current will increase

• The current will stay the same

The potential difference across a 5 kΩ is 12 V. Find the current flowing through the resistor

• 60 mA

• 2.4 mA

• 1.7 mA

• 0.998 mA