Question

5 main differences between ac and dc in 5 mark ques​

Answer 1

Answer:

AC changes periodically and continuously

AC is more dangerous since it changes twice in 0.02 seconds

Frequency is 50 Hertz

Electrons keep switching directions - forward and backward.

Safe to transfer over longer city distances and can provide more power.

Obtained from AC generator and mains

DC

This is constant

Frequency is zero

Voltage of DC cannot travel very far until it begins to lose energy

It flows in one direction in the circuit.

Electrons move steadily in one direction or 'forward

Obtained from cell or battery

Answer 2

Explanation:

1. The frequency of ac current is 50 to 60 Hz depending upon the country whereas the frequency of DC is 0
2. AC reverse it's direction but DC flows in one direction only
3. The power factor of ac lies between 0 to 1 but in DC it is always 1.
4. AC is obtained from generator and mains whereas DC is obtained from cell or battery
5. AC is safe to transfer long distances but DC is not

Hope it helps mate......