24 Questions
Which term describes the energy needed to move a charge against an electric field?
Electric potential energy
What does the electric potential energy of a charge in an electric field provide it with?
Ability to do work
In which region does a charge have high electric potential energy?
High Potential Energy
What happens to the electric potential energy when a charge moves from a high potential region to a low potential region?
Work is done
What type of energy is electric potential energy in relation to moving charges?
Conservative
Which term represents the energy possessed by a charge in an electric field?
Electric potential energy
What is the formula for calculating potential energy in an electric field?
PE = qEd
In the context of electric potential, what does the variable 'E' represent?
Electric field strength
What is the electric potential at a distance of 3cm from a charge of -12.5 pC?
-1,250 V
Which equation is used to calculate the potential energy of a system in an electric field?
PE = kqQ/r
If a charge of -3.5 μC is placed 5cm away from a charge of 8 μC, what is the potential energy of the system?
-0.28 J
In the context of electric fields, what does the variable 'k' represent?
Electric field constant
What is the amount of electric potential energy possessed by a -10𝜇C charge at a point where the electric potential is 4.70 Volts?
9.40x10^-9 Joules
What is the work required for a +10𝜇C charge to move from point A to point B?
1.26x10^-7 Joules
How much work is required for a proton to move from point B to point C?
5.45x10^-8 Joules
What is the work required for an electron to move from point A to point D?
4.96x10^-11 Joules
Calculate the voltage between points B and D.
-50 Volts
Are electric field lines and equipotential surfaces always mutually perpendicular?
Only in specific cases they are perpendicular.
What is the work required for a proton to move from point B to point C?
-1.6x10^-19 J
How much work is needed for an electron to move from point A to point D?
-2.4x10^-17 J
What is the voltage between points B and D?
-150V
When moving along an equipotential line, the work done is ____.
Zero
The work done for a positive charge to move along an equipotential surface is ____.
Zero
What does a positive voltage value between two points indicate?
Potential energy difference in the direction of the field
Test your knowledge on the relationship between electric potential, work, potential energy, and electric field. Explore concepts such as determining electric potential function from continuous charge distributions, analyzing electric field vectors and potential surfaces, and calculating work done by electric force.
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