Exercise 4.9 A

Difficulty Secondary School High school/other
Basic Easy
★★ Demanding Basic
★★★ Demanding
★★★★ Difficult
★★★★★ Very difficult

Determine the inductance of the coil and the phase between the voltage and the electric current.

Answer: $12\ mH$ ; $17°$

Exercise 4.9 B

Difficulty Secondary School High school/other
Basic Easy
★★ Demanding Basic
★★★ Demanding
★★★★ Difficult
★★★★★ Very difficult

Determine the inductance of the coil and the phase between the voltage and the electric current.

Tip: ${U{_{R{_L}}}}^2+{U{_L}}^2= {U{_{R{_L}+L}}}^2$
Answer: $0{,}71\ mH$ ; $1{,}1°$