why Mobile charger is step down transformer ?
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Answer:
Mobile phone chargers contain a step-down transformer to convert the input of 220 V to a working output voltage of around 5 V. Copper windings in a transformer. If the secondary coil has more turns than the primary coil then the output voltage is bigger than the input voltage.
Explanation:
The higher the current, the more heat is lost. To reduce these losses, the National Grid transmits electricity at a low current. This needs a high voltage. ... These high voltages are too dangerous to use in the home, so step-down transformers are used locally to reduce the voltage to safe levels
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Explanation:
Because it consists of a transformer than converts the alternating current of 220V into direct current of around 5V so that our mobiles get a constant current and voltage
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