eletrodinamica Flashcards

1
Q

corrente elétrica

A

i= Q / 🔺t

i = A
Q= C
t= s

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2
Q

DDP OU TENSAO

A

tensao= energia elétrica/ carga

tensao = volts
energia = jouile
carga = coulomb

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3
Q

resistência eletrica

A

R= v/i

resistência =ohm

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4
Q

resistor

A

recebe energia
dissipa calor

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5
Q

leis de ohm

A

1• v= R. i

2•
R= p. l/ a

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6
Q

potencia elétrica

A

P = i. v

P= v2/ R

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7
Q

associação de resistores
serie

A

R serie = soma
I= igual
V= soma

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8
Q

associação de resistores em paralelo

A

R paralelo 1/rp= 1/r1+ 1/r2
dois: produto pela soma
iguais: R/N
I= soma
V= igual

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9
Q

instrumentos de medicao

A

amperímetro ligado a corrente
voltímetro ligado para medir a tensao

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