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Physics CBSE Live product
Class 8 (2025-26)
Electricity: Magnetic and heating effects
Revision II - Electricity: Magnetic and heating effects
4.
Electrolytes and simple electric cells
Question:
2
m.
Select the correct answer:
1
.
An LED is connected to two identical copper plates dipped in lemon juice. What will be observed?
LED will glow brightly
LED will glow dimly
LED will glow only when plates touch
LED will not glow
2
.
Why is lemon juice commonly used in simple electric cell experiments?
It acts as a weak acid and electrolyte
It is easily available and colorful
It is a strong base
It prevents rusting of metals
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