1 Ntype extrinsic semiconductors attribute their conductive

1. N-type extrinsic semiconductors attribute their conductive to properties mainly due to which charge carriers?

a. electrons and holes

2. Corrosion can be prevented or slowed down by choosing a metal that passivates in a particular environment. Passivation involves which of the following?

a. increased current from the anodic reaction b. application of a polymer coting to the metal c. formation of protective oxide on the metal d. adding inhibitors to the electrochemical enivironment

3. During electrochemical corrosion, the oxidation reaction in which electrons are given up usually takes place at the cathode. True or False

Solution

1) electrons are the majority charge carriers

2) c formation of protective oxide on the metal,

passivation is the use of a light coat of a protective material, such as metal oxide

3)False it was done anode