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15 Cards in this Set
- Front
- Back
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Voltmeter
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attaches in parallel
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ammeter
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attaches in series
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series
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single path for current
It= I1=12=I3 Vt= V1+V2+V3 Rt= R1+R2+R3 |
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parallel
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2 or more paths
It= I1+I2+I3 Vt= V1=V2=V3 Rt=(1/R1+1/R2+1/R3)^-1 |
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Ohm's law
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I=V/R
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Resistance
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length-R^ as L^
cross-sectional area-Rv as A^ temperature- R^ as T^ natural resistiviity om materals R=p(L/A) |
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drift velocity
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speed of electrons in electricity
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Electric potential energy
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EPe=Kc(q1q2)/r
=-qEd |
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Electric potential differance
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Voltage
V=Epe/q |
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electric current
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amperage
I=q/t |
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Coulomb's law
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F=K(q1q2)/d^2
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induction
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opposite charge than rod
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conduction
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same charge as rod
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Law of electrostatics
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similars repel
opposites attract |
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slectric current
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flowing e- => magnetic field =>magnet (electromagnet)
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