Electrostatics Review

Which quantity of charge is not possible on an oil droplet?

2.6 x 10^19 C

An object cannot have a charge of:

4.5 x 10^-19 C

A positively charged body must have:

a deficiency of electrons

Milikan determined the charge on an electron by observing the motion of charged oil drops in the presence of:

an electric field

A device commonly used to detect the presence of a static electric charge is:

an electroscope

In an operating mass spectrometer, the motion of positive ion beams is influenced by:

both electric and magnetic fields

The coulomb is a unit of:

charge

A neutral object is attracted by a charged object because the neutral object's:

charges are redistributed

If the magnitude of the charge on each of two positively charged objects is halved, the electrostatic force between the objects will:

decrease to 1/4

After contact, the spheres moved apart. As the distance between the spheres is increased, the electric potential energy of the system:

decreases

As the electric field intensity at a point in space decreases, the electrostatic force on a unit charge at this point:

decreases

If the charge on one or two small charged spheres is doubled while the distance between them remains the same, the electrostatic force between the point sources will be:

doubled

Which procedure will double the force between two point charges?

doubling the magnitude of one charge

When a rubber rod is rubbed with fur, the rod becomes negatively charged due to the transfer of:

electrons to the rod

If the charges on each of two small charged metal spheres is doubled and the distance between the spheres remain fixed, the magnitude of the electric force between the spheres will be:

four times as great

If the charge on each of two point sources is doubled, the electrostatic force between them:

is four times as great

A glass rods becomes positively charged when it is rubbed with silk. This net positive charge accumulates because the glass rod:

loses electrons

A glass rod is given a positive charge by rubbing it with silk. The rod has become positive by:

losing electrons

An object is charged positively when rubbed with a piece of silk. The object became charged by:

losing electrons

If object A acquires an excess of 100 electrons, object B must have:

lost 100 electrons

The Milikan oil drop experiment was designed to determine the:

magnitude of the charge of an electron

A negatively charged object is brought near the knob of a negatively charged electroscope. The leaves of the electroscope will:

move farther apart

As a positively charged rod is brought near to but not allowed to touch the knob of an uncharged electroscope, the leaves will diverge because:

negative charges are attracted to the knob of the electroscope

Compared to the charge on a proton, the charge on an electron has the:

opposite sign and same magnitude

If the charge on each of two small spheres a fixed distance apart is doubled, the force of attraction between the spheres will be:

quadrupled

If the distance separating an electron and a proton is halved, the magnitude of the electrostatic force between these charged particles will be:

quadrupled

When hair is combed with a hard rubber comb, the hair becomes positively charged because the comb:

removes electrons from the hair

A glass rod is rubbed with silk. During this process, a positive charge is given to the glass rod by:

removing electrons from the rod

When an electroscope is charged by contact, the charging body always gives the electroscope:

the same charge as the charging body

Which procedure will give an electroscope a positive charge?

touching the electroscope with a positively charged object