EV Technology - Future Battery Technologies
Consider this scenario: A wireless charger coil creates a magnetic field that induces a current in the device coil. What happens if the distance between the coils increases significantly?
Consider this scenario: A wireless charger coil creates a magnetic field that induces a current in the device coil. What happens if the distance between the coils increases significantly?
medium📝 Analysis Q13 of 15
Step-by-Step Solution
Solution:
Step 1: Understand magnetic induction and distance
Magnetic fields weaken as distance between coils increases, reducing energy transfer.Step 2: Effect on charging speed
Less energy transfer means slower charging speed when coils are farther apart.Final Answer:
The charging speed decreases -> Option DQuick Check:
More distance = weaker induction = slower charging [OK]
Quick Trick: More distance means weaker magnetic field and slower charging [OK]
Common Mistakes:
- Assuming charging speed increases with distance
- Thinking distance has no effect
- Confusing overheating with distance effect
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