Exercise 4.3 A

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

Specify the power of one lamp as well as the power of the lamps. Both lamps are similar.

Answer: Power of the lamps is 0,43 W; the power of a single lamp is 0,22 W

Exercise 4.3 B

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

Specify the power of one lamp as well as the power of the lamps. Both lamps are similar.

Answer: Power of one lamp is 0,32 W; power of both lamps is 0,65 W

Exercise 4.3 C

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

Specify the power of one lamp as well as the power of the lamps. Both lamps are similar.

Answer: Power of the lamps is 0,90 W; the power of one lamp is 0,45 W