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Battery Trivia Questions and Answers

Battery trivia questions with answers about electric batteries and cells.

 

Battery Trivia Questions and Answers

An electric battery is a device consisting of one or more electrochemical cells that convert stored chemical energy into what?
A: Electrical energy.

Each cell contains two what?
A: Terminals for connection to a circuit.

Of the two terminals a cell needs, one must be the positive terminal, or cathode, and the other must be what?
A: A negative terminal, or anode.

Electrolytes allow ions to do what?
A: Move between the electrodes, which allows current to flow in and out of the battery.

Primary batteries are used once and then discarded because the electrode materials are irreversibly changed during what?
A: Discharge.

Secondary batteries can be discharged and recharged multiple times because the original composition of the electrodes can be restored by doing what?
A: Reversing the current flow through the cell or battery.

One example is the lead-acid batteries used in what?
A: Cars.

 

Another example of a secondary battery is the lithium ion battery used in what?
A: Cell phones.

Batteries come in sizes from miniature cells used for wristwatches to battery banks the size of what?
A: Rooms that provide standby power for computer data centers etc.

Batteries have much lower "what" than common fuels such as gasoline?
A: Specific energy.

The usage of "battery" to describe a group electrical devices (cells in an electric battery) is attributed to whom?
A: Benjamin Franklin.

Benjamin Franklin got the term "battery" from where?
A: The military, which refers to weapons functioning together as in a battery of cannon.

Who was the first person to describe an electrochemical battery?
A:  Alessandro Volta.

Early batteries were of limited usefulness because they could not provide a large "what" for a sustained period?
A: Current.

 

What was the first practical source of electricity?
A: The Daniell cell, invented in 1836 by British chemist John Frederic Daniell

The Daniell cell was widely adopted as a power source for electrical what?
A: Telegraph networks.

These early cells were called wet cells because the  electrolytes they used were what?
A: Liquid.

Wet cells, because of their liquid electrolyte, were prone to what?
A: Leakage and spillage.

The early cells often used what to hold their components?
A: Glass jars.

Near the end of the nineteenth century, what invention made portable electrical devices practical.?
A: The Dry cell.

Batteries convert chemical energy directly to what?
A: Electrical energy.

The voltage across the terminals of a cell is known as the what?
A: Terminal voltage.

 

The terminal voltage of a cell that is neither charging nor discharging is called the what?
A: Open-circuit voltage.

What causes the terminal voltage of a cell that is discharging to be smaller than the open-circuit voltage?
A: Internal resistance.

The terminal voltage depends on the energy release of what?
A: The chemical reactions of its electrodes and electrolyte.

What is the approximate terminal voltage of Alkaline and zinc–carbon cells?
A: 1.5 volts.

What is the approximate terminal voltage for NiCd and NiMH cells?
A: 1.2 volts.

What is the terminal voltage for cells using lithium compounds?
A: 3 volts or more.