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Video: Yuav ua li cas koj xam amps ntawm volts thiab kuj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ohm txoj cai formula
Cov cov resistor tam sim no kuv nyob rau hauv cov amps (A) yog sib npaug rau cov resistor qhov voltage V hauv hluav taws xob (V) faib los ntawm cov tsis kam R hauv ohms (Ω): V yog tus hluav taws xob poob ntawm resistor , ntsuas hauv Volts (V).
Hais txog qhov no, koj yuav ua li cas xam ohms los ntawm volts thiab amps?
Ohms Txoj Cai thiab Lub Zog
- Txhawm rau nrhiav qhov Voltage, (V) [V = I x R] V (volts) = I (amps) x R (Ω)
- Txhawm rau nrhiav qhov tam sim no, (I) [I = V ÷ R] I (amps) = V (volts) ÷ R (Ω)
- Txhawm rau nrhiav qhov Resistance, (R) [R = V ÷ I] R (Ω) = V (volts) ÷ I (amps)
- Kom pom lub hwj chim (P) [P = V x I] P (watts) = V (volts) x I (amps)
Ib tug kuj yuav nug, yog dab tsi yog qhov tseeb xam rau kev tiv thaiv thaum tam sim no yog 4 amps thiab qhov voltage yog 24 volts? a) 24 volt – 4amps ua = 20 awm. b) 24 volt + 4amps ua = 28 awm. c) 24 volt × 4amps ua = 96 awm.
Ib tug kuj yuav nug, koj ua li cas xam amps los ntawm Watts thiab tsis kam?
Piv txwv li yog lub hwj chim yog 100 watts thiab qhov hluav taws xob yog 50 volts, tam sim no yog 100 / 50, lossis 2 cov amps . xam tus tsis kam , hauv Ohms, los ntawm kev faib cov voltage los ntawm qhov tam sim no. Ohms txoj cai hais tias voltage = tam sim no x tsis kam , yog li los ntawm rearranging lub formula kuj = voltage / tam sim no.
Yuav ua li cas koj xam watts nrog voltage thiab ohms?
Thov muab 2 qhov tseem ceeb thiab nias " xam "kom tau txais lwm yam txiaj ntsig hauv ohm ua txoj cai sib npaug V = I × R thiab P = V × I.
Ohms Txoj cai Tshuab xam zauv.
| Voltage (V): | kilovolts [kV] volts [V] millivolts [mV] |
|---|---|
| Kuj (R): | ohms [Ω] kilohm [kΩ] megohm [MΩ] |
| Lub zog (P): | watts [W] kilowatts [kW] megawatts [MW] horsepower BTU/h |
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