Electric Fields and Forces Flashcards (10 cards)

What charge sign does an electron carry?

Negative.

How do two charges with the same sign interact?

They repel one another.

What equation describes the quantization of electric charge?

$q=Ne$, where $N$ is an integer.

What is the magnitude of the fundamental charge?

$1.6\times10^{-19}\,\mathrm{C}$

What is charging by induction?

Charging an object without contact with the object that induces the charge.

What formula gives the magnitude of the force between stationary point charges?

$F_e=k_e\frac{|q_1q_2|}{r^2}$

What region around a source charge is called its electric field?

The region where another charge experiences an electric force.

How is electric field defined using force on a positive test charge?

$\vec E=\frac{\vec F_e}{q_0}$

What does induction-like charging rearrange within an insulator?

Charges within the material’s molecules.

What defines a point charge?

A particle of zero size that carries electric charge.