Current electricity numbers

Exercise and reference answers

Questions

1. Answer

   2

   Question

   Rules Kirchhoff gave for circuits

2. Answer

   2

   Question

   Times the resistance grows if length doubles

3. Answer

   2

   Question

   Times it grows if the area is halved

4. Answer

   5

   Question

   Current I3 when I1 is 2 A and I2 is 3 A join

Instructions

Type the number only.

Explanation