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Physics CBSE Live product
Class 8 (2026-27)
Electricity: Magnetic and Heating Effect
Heating Effect & Electric Cells
7.
Dry cell
Question:
4
m.
Answer the following question:
Why are dry cells called 'dry' cells? Explain their working in brief
Dry cells are called 'dry' because they
contain only dry metal plates
do not produce electric current
contain a liquid electrolyte
do not contain a liquid electrolyte
.
Instead, they contain a
solid metal block
dry powder
clear liquid
thick moist paste
as the electrolyte.
The chemical reactions inside the cell produce
light rays
electrodes
magnetic field
electric current
.
They can be used as
solar panels
hydroelectric generators
portable batteries
stationary power stations
.
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