কীভাবে Electrical Electronics গণনা করবেন
Electrical Electronics কি?
Electrical and electronics calculators cover resistor selection, circuit analysis, power calculations, and component sizing. They are used by hobbyists, technicians, and engineers designing circuits.
ধাপে ধাপে নির্দেশিকা
- 1LED resistor: R = (Vsupply − Vforward) / I_forward
- 2Voltage divider: Vout = Vin × R2 / (R1 + R2)
- 3Power factor: PF = real power (W) / apparent power (VA)
সমাধান করা উদাহরণ
ইনপুট
5V supply · LED Vf = 2.0V · If = 20mA
ফলাফল
R = (5 − 2) / 0.02 = 150 Ω (use 150 Ω standard value)
Always round up to the nearest standard resistor value