Evaluation:
Published: 24.11.2011.
Language: Latvian
Level: College/University
Literature: n/a
References: Not used
  • Samples 'Elektrotehnika. Uzdevums', 1.
  • Samples 'Elektrotehnika. Uzdevums', 2.
  • Samples 'Elektrotehnika. Uzdevums', 3.
Extract

1). Aprēķinām elementu nezināmās pretestības:

• ω = 2*π*f= 2*3.14*50= 314

• XC1= 1/( ω *C)= 1/(314*72*10-6)= 44.23Ω


• XL1= ω *L= 314*148*10-3= 46.47Ω

• tgφ= (XL1-XC1)/(R1+R2+R3)=(46.47-44.23)/(64+21+37)= 0.018

• φ= arctg(0.018)= 1.031○


• cosφ= 0,514

Author's comment
Atlants