Electro Statics Flashcards

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1
Q

What is this

A

The study of stationary charges

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2
Q

What is atoms made up of

And how do we know it is +ve or -ve charged

A

Matter is made up if atoms which consist of electrons ,protons , neutrons

If an object has excess electrons it becomes negatively charged

If an object has dificiency electrons it becomes positively charged

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3
Q

How does a object get charged

A

To cahrged an object friction is need

The object is rubber against another object which results in the transfer of electrons

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4
Q

How do u create friction

What us this called

A

The object is rubber against another object which results in the transfer of electrons

This process of charging a material by rubbing us called triboectric charging

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5
Q

What is the symbol of charge

A

Q

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6
Q

What is cahrge measured in

A

Coulombs

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7
Q

What is the constant charge of an negative and positive electton

A

Electron charge - (-1,6x10-19)

Positiev charge - (1,6x10-19)

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8
Q

What us net charge

A

The total charge in a given objects

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9
Q

How do u calculate net charge

A

Add the charges

Qnet= Q1 + Q2 ….

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10
Q

For any calculation what must Q be in

A

Q must be jn coloumbs

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11
Q

What if Q us given as the following

mC
uC
nC
pC

How do u convert to C

A

mC- (x10-3)

uC - (x10-6)

nC - (x10-9)

pC - (x10-12)

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12
Q

What does the principleof cinservation of charge state

A

In a isolated system the net charge remains constant after any physical change

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13
Q

What happens when to charged objects come into contact with each other

What happens when thet separate

A

when to charged objects come into contact with each other they ashre theru charges equally

when thet separate they have the same amount or charge

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14
Q

How do u calculate the new charge after two objects who came into contact ,seprate

A

Qnew=Q1 +Q2..
————
n

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15
Q

What deos principle cahrge of quantization state

A

Every cahrge in the universe is an integer multiple of the electron charge

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16
Q

Hwo do u solve for charge

A

Q=nqe

17
Q

How do u solve for the numver of electrons lost if gained to a quire a certain charge

A

n=Q
—-
qe

18
Q

How do u calculate the number of electrons transferred when two charged are brought into contact and separated

A

Qnew=Q1 +Q2..
————
n

19
Q

How to calculate the charge transferred

A

Qtransferred=Qnew—Qold

20
Q

How do u calculate the number of electrons transferred

A

n of e`= Qtransferred
———————
qe