Question:
The device used for stepping up low voltage of primary current to high voltage current in petrol engine is
The device used for stepping up low voltage of primary current to high voltage current in petrol engine is
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Think of the Ignition Coil as a "Voltage Multiplier" that powers the spark.
Updated On: May 5, 2026
- Condenser
- Distributor
- Dynamo
- Ignition coil
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The Correct Option is D
Solution and Explanation
Step 1: Concept Petrol engines require a high-voltage spark (typically 20,000V to 30,000V) to ignite the fuel-air mixture.
Step 2: Meaning The battery provides only a low voltage (12V), which is insufficient to jump the gap of a spark plug.
Step 3: Analysis The ignition coil acts as a pulse transformer. It uses electromagnetic induction to convert the low-voltage primary current from the battery into the high-voltage secondary current needed for the spark.
Step 4: Conclusion The ignition coil is the specific component responsible for this voltage step-up.
Final Answer: (D)
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