Applications of Electroplating

Q. Soft drink cans as shown below are usually electroplated with tin because :

1. Tin is less reactive compared to the base metal with which the can is made.
2. Tin is less expensive compared to other metals
3. Tin is stronger and shiny in appearance
4. Tin is more reactive than other metals that can be used

Q. Choose the correct statement.

1. A switch causes the change in direction of current in a circuit.
2. A switch is used to make or break a circuit.
3. A switch can increase the amount of current flowing in a circuit.
4. A switch can decrease the amount of current flowing in a circuit.

Q.

How water carry electricity?