electric potential and capacitance
electric potential - answerThe work done per unit charge in bringing a positive test charge from infinity
to that point in the field.
potential energy - answerstored energy that results from the position or shape of an object
Electric potential formula - answerV = kQ/r
Electrostatic potential formula (in terms of work) - answerV = W/Q
Change in potential energy - answerWork done
Work done depends on the path, true or false - answerfalse
Potential energy at infinity - answer0
Potential energy of a charge at point P - answerWork done in bringing the charge from infinity to P
,Potential - distance relation - answerPotential inversely proportional to distance from charge
Potential due to a dipole - answer
Potential due to multiple charges - answerk[(q1/r1)+(q2/r2)]
- answer
do free electrons travel to a region of higher to lower potential - answerHigher Potential
do free positive charges travel to a region of higher to lower potential - answerLower Potential
Force between charges formula - answer
Electric field due to charge - answer
Potential energy due to two charges - answer
Potential energy in an electric field - answerU = qV
PE due to system of charges in an electric field - answer(kq1q2/r^2) + q1V1 + q2V2
Change in PE of dipole in Electric Field - answerW = PE(cos@1 - cos@2) = work done is change in
potential energy in moving the dipole from @1 to @2
PE of dipole in Electric Field - answerkq^2/2a
Conductors - answermaterials that allow electric charges to flow through them easily
, Insulators - answermaterials that prevent electric charges from flowing through them easily
Inside conductor, electric field is ____ - answerzero
Electrostatic shielding - answerThe phenomenon of making a region free from any electric field is called
electrostatic shielding.
It is based on the fact that electric field vanishes inside the cavity of a hollow conductor.
When a conductor is charged, electric charges reside ___ - answeron the surface
Electric field is always perpendicular to the surface, true or false - answerTrue
dielectric - answerAn insulating material placed between the two plates of a capacitor, allowing for the
storing of more charge (if the circuit is on) or a decrease in the voltage difference (if the circuit is off).
Non polar - answerAtoms whose negative and positive charges have coinciding centers
Polar - answerAtoms whose negative and positive charges dont have coinciding centers
Polar molecules - Permanent or temporary dipole moment? - answerPermanent dipole moment
Non - Polar molecules - Permanent or temporary dipole moment? - answerTemporary dipole moment
Induced dipole moment - answera temporary moment where a non-polar molecule behaves "like" a
polar molecule temporarily because of external electric field
Polarisation (P) formula in terms of dipole moment - answerDipole Moment / Volume
Polarisation (P) formula in terms of Electric Susceptibility - answer(X)(E) where X - electric susceptibility
of dielectric medium
electric potential - answerThe work done per unit charge in bringing a positive test charge from infinity
to that point in the field.
potential energy - answerstored energy that results from the position or shape of an object
Electric potential formula - answerV = kQ/r
Electrostatic potential formula (in terms of work) - answerV = W/Q
Change in potential energy - answerWork done
Work done depends on the path, true or false - answerfalse
Potential energy at infinity - answer0
Potential energy of a charge at point P - answerWork done in bringing the charge from infinity to P
,Potential - distance relation - answerPotential inversely proportional to distance from charge
Potential due to a dipole - answer
Potential due to multiple charges - answerk[(q1/r1)+(q2/r2)]
- answer
do free electrons travel to a region of higher to lower potential - answerHigher Potential
do free positive charges travel to a region of higher to lower potential - answerLower Potential
Force between charges formula - answer
Electric field due to charge - answer
Potential energy due to two charges - answer
Potential energy in an electric field - answerU = qV
PE due to system of charges in an electric field - answer(kq1q2/r^2) + q1V1 + q2V2
Change in PE of dipole in Electric Field - answerW = PE(cos@1 - cos@2) = work done is change in
potential energy in moving the dipole from @1 to @2
PE of dipole in Electric Field - answerkq^2/2a
Conductors - answermaterials that allow electric charges to flow through them easily
, Insulators - answermaterials that prevent electric charges from flowing through them easily
Inside conductor, electric field is ____ - answerzero
Electrostatic shielding - answerThe phenomenon of making a region free from any electric field is called
electrostatic shielding.
It is based on the fact that electric field vanishes inside the cavity of a hollow conductor.
When a conductor is charged, electric charges reside ___ - answeron the surface
Electric field is always perpendicular to the surface, true or false - answerTrue
dielectric - answerAn insulating material placed between the two plates of a capacitor, allowing for the
storing of more charge (if the circuit is on) or a decrease in the voltage difference (if the circuit is off).
Non polar - answerAtoms whose negative and positive charges have coinciding centers
Polar - answerAtoms whose negative and positive charges dont have coinciding centers
Polar molecules - Permanent or temporary dipole moment? - answerPermanent dipole moment
Non - Polar molecules - Permanent or temporary dipole moment? - answerTemporary dipole moment
Induced dipole moment - answera temporary moment where a non-polar molecule behaves "like" a
polar molecule temporarily because of external electric field
Polarisation (P) formula in terms of dipole moment - answerDipole Moment / Volume
Polarisation (P) formula in terms of Electric Susceptibility - answer(X)(E) where X - electric susceptibility
of dielectric medium
