Answer Posted / harikrushna adalja

DC

You can easily work with resistance in DC circuits
because DC is a steady, constant flow of current. The
relationships between resistance, voltage, current and power
come directly from Ohm's Law.

AC

In contrast to DC's constant flow, AC alternates between
negative and positive peak values 60 times a second. The 110
volt AC is 110 volts only at its momentary maximum. Though
Ohm's Law applies to AC at any given instant, you determine
power and heat by finding an average current value.

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