Advertisements
Advertisements
Question
Which cells is used as a source of power in flashlights?
Options
Dry cell
Fuel cell
Hydrogen cell
None of them
Solution
Dry cell
Explanation:
Dry cells are used to power flashlights, portable radios, tape recorders, clocks, and other devices.
APPEARS IN
RELATED QUESTIONS
Answer the following in brief.
Why do the cell potential of lead accumulators decrease when it generates electricity? How the cell potential can be increased?
Answer the following in brief.
Write the electrode reactions and net cell reaction in NICAD battery.
Answer the following:
Write the electrode reactions when lead storage cell generates electricity. What are the anode and cathode and write the electrode reactions during its recharging?
Answer the following:
What are anode and cathode for Leclanche' dry cell?
Write the potential produced through the NICAD storage cell.
Why is Nickel-cadmium cell referred to as a secondary cell?
Write working of NICAD storage cell. Also write its applications.
Which of the following statements are CORRECT for NICAD cell and mercury battery?
I. Both can be recharged.
II. Both cannot be recharged.
III. Both are secondary voltaic cells.
IV. Both cells work using an acidic electrolyte.
The NICAD cell provides a potential of __________.
The mercury battery provides a constant voltage of ____________.
During discharging the change taking place at cathode in lead accumulator is:
When dry cell is in use the change taking place at cathode is ______.
Write electrode reactions and overall cell reaction when Leclanche's dry cell generates electricity.
In dry cell, what acts as a negative electrode?
Which among the following equations represents the reduction reaction taking place in lead accumulator at positive electrode, while it is being used as a source of electrical energy?
What is the density of the solution of sulphuric acid used as an electrolyte in a lead accumulator?
NICAD storage cell is made up of ______ electrodes.
Draw a neat labelled diagram of a lead accumulator.
Write the net cell reaction during discharging of lead accumulator.