Electric cell

The current in a chemical cell is a movement of

• Positive ions only

• Positive and negative ions

• Negative ions only

• Positive hole charges

Cells are connected in series in order to

• Increase the voltage rating

• Increase the current rating

• Increase the life of the cells

• None of the above

Which of the following primary cells has the lowest voltage?

• Lithium

• Zinc chloride

• Mercury

• Carbon zinc

Which of the following primary cells has the highest voltage ?

• Manganese-alkaline

• Carbon-zinc

• Lithium

• Mercury

A fuel cells converts .........energy into electrical energy.

• Mechanical

• Magnetic

• Solar

• Chemical

Benefits of using small cells could be

• light weight

• high voltage

• constant voltage

• all of the above

Five 2 V cells are connected in parallel. The output voltage is

• 1V

• 1.75 V

• 1.5 V

• 2 V

Identify the above symbol.

• battery

• Electric cell

• AC source

• DC source

Identify the above electric cell.

• Zinc-carbon cell

• silver oxide cell

• Nickel cadmium cell

• Lithium cell

Nickel metal hydride is a

• Primary cell

• reserve cell

• Secondary cell

• fuel cell