CBSE · Class 7 · Science · Electric Current and its EffectsCompact Fluorescent Lamps (CFLs) are preferred over normal incandescent bulbs because:
Step-by-Step Solution
CFLs do not waste electricity as heat like incandescent bulbs do and thus help in conserving energy and reducing electricity wastage.
Detailed Options Breakdown
Option : They consume more electricity
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electric Current and its Effects.
Option 1: They produce heat waste
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electric Current and its Effects.
Option 2: They reduce electricity wastage by not producing unnecessary heat (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 3: They are made of wood
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electric Current and its Effects.
💡 Study Guide: This question tests core syllabus concepts from Electric Current and its Effects. For formulas, key summaries, and mock exam reference guides, read the full Electric Current and its Effects Revision Notes.