AC Current vs DC Current — Difference (with Table & FAQs)
Alternating current and direct current are the two main forms of electrical current used in homes and industries across India. Mastering their differences
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TL;DR: Alternating current and direct current are the two main forms of electrical current used in homes and industries across India. Mastering their differe…
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The main difference between AC Current and DC Current: Alternating current and direct current are the two main forms of electrical current used in homes and industries across India. Mastering their differences
AC Current vs DC Current — Comparison Table
| Basis | AC Current | DC Current |
|---|---|---|
| Direction of flow | Changes direction periodically | Flows in one direction only |
| Source | Alternator, power stations | Battery, cell, solar panel |
| Frequency in India | 50 Hz | 0 Hz (constant) |
| Efficiency | Can be transmitted over long distances | Loses energy over long distances |
| Applications | Home appliances, factories, streets lights | Electronics, mobile phones, flashlights |
Key Points
- AC current reverses direction periodically; DC current flows in one direction
- India uses 50 Hz AC current for domestic and industrial supply
- AC can be stepped up or down using transformers, making it efficient for transmission
- DC is preferred for electronic circuits but batteries discharge over time