Elements Uses
Total Questions: 21
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A ) Germanium
B ) Silicon ✅
C ) Iron
D ) None of these
A ) Solar energy into electricity ✅
B ) Solar to light
C ) Heat to electrical energy
D ) Heat to light energy
Explanation:
✅ Solar cells convert: Solar energy into electrical energy
📘 Explanation:
- ✅Solar cells (also called photovoltaic cells) convert sunlight (solar energy) directly into electricity.
- ✅This process is called the Photovoltaic Effect.
A ) Graphite ✅
B ) Germanium
C ) Silicon
D ) Rubber
A ) Copper
B ) Iron
C ) Graphite ✅
D ) Aluminium
A ) Lead acid ✅
B ) Lithium ion
C ) Nickel cadmium
D ) Alkaline
A ) Alkaline
B ) Zinc carbon
C ) Lithium ion ✅
D ) Silver oxide
A ) Hydrochloric acid
B ) Sulfuric acid ✅
C ) Nitric acid
D ) Sodium hydroxide
A ) Ampere hours ✅
B ) Watt hours
C ) Amperes
D ) Volt
A ) Lithium ion ✅
B ) Nikl cadmium
C ) Lead acid
D ) Zinc carbon
A ) Sodium hydroxide
B ) Paste of ammonium chloride ✅
C ) Liquid acid
D ) Lead dioxide
A ) Michael Faraday
B ) Thomas Edison
C ) Alessandro Volta ✅
D ) Nikola Tesla
A ) Memory effect ✅
B ) High cost
C ) Low energy density
D ) Toxic fumes
A ) Carbon ✅
B ) Copper
C ) Zinc
D ) Iron
A ) Anode
B ) Electrolyte
C ) Cathode ✅
D ) Terminal
A ) Store energy
B ) Conduct electricity ✅
C ) Absorb heat
D ) Prevent corrosion
A ) Copper
B ) Magnesium
C ) Zinc ✅
D ) Iron
A ) 1.5 V ✅
B ) 3 V
C ) 6V
D ) 9V
A ) Lithium ion ✅
B ) Nickel cadmium
C ) Lead acid
D ) Alkaline
A ) Sulphur ✅
B ) Zinc
C ) Iron
D ) Nitric acid
A ) Mercury ✅
B ) Iron
C ) Copper
D ) None of these
A ) Aluminium
B ) Mercury ✅
C ) Copper
D ) Lead