Which material resists more?

Exercise and reference answers

Questions

1. A

   Copper

   B

   Iron

   Higher value

   Iron

2. A

   Nichrome

   B

   Mercury

   Higher value

   Nichrome

3. A

   Silver

   B

   Aluminium

   Higher value

   Aluminium

4. A

   Gold

   B

   Tungsten

   Higher value

   Tungsten

5. A

   Lead

   B

   Steel

   Higher value

   Lead

6. A

   Pure silicon

   B

   Pure carbon

   Higher value

   Pure silicon

Instructions

Tap the material with the higher resistivity at 20 degrees C.

Explanation