True or false about current electricity

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Charges in motion make an electric current.

2. Statement is true

   No

   Statement

   Doubling a wire's length halves its resistance.

3. Statement is true

   Yes

   Statement

   Drift velocity is opposite to the electric field.

4. Statement is true

   No

   Statement

   Dry cells have lower internal resistance than electrolytic ones.

5. Statement is true

   Yes

   Statement

   Kirchhoff gave two rules for circuits.

Instructions

Decide whether each statement is true or false.

Explanation