22.3 Electric Potential

As a proton moves in the direction the electric field lines...

• it is moving from low potential to high potential and gaining electric potential energy.
• it is moving from low potential to high potential and losing electric potential energy.
• it is moving from high potential to low potential and gaining electric potential energy.
• it is moving from high potential to low potential and losing electric potential energy.

The absolute electric potential is ______ at an infinite distance from a charge.

• 0

• negative infinity

• positive infinity

• 200

The SI unit for electric potential is the ___________.

• Volen

• Vespa

• Volt

• Valspar

Electrostatic potential energy can be recorded in units of electron-Volts (eV). What is equivalent to 1 eV?

• 1.602×10⁻¹⁹ 𝐽

• 100 𝐽

• 220 𝐽

• 0.003 𝐽

The direction of electric field lines shows the

• direction of the force on a test positive charge.

• size of the field.

• strength of the field.

• all of the above

Two charges +Q and -Q are situated at a certain distance. At the point exactly midway between them

• Electric field and potential both are zero

• Electric field is zero but potential is not zero

• Electric field is not zero but potential is zero

• Neither electric field nor potential is zero

Two charges +Q and +Q are situated at a certain distance. At the point exactly midway between them

• Electric field and potential both are zero

• Electric field is zero but potential is not zero

• Electric field is not zero but potential is zero

• Neither electric field nor potential is zero

When a proton is accelerated through 1V, then its kinetic energy will be

• 1.6eV

• 13.6eV

• 1eV

• 0.54eV

Is work done by an external force to move a positive charge from point A to point B?

• Yes

• No

Electric potential energy is greatest at point...

• A

• B