AC VS DC

An electric heater is connected to DC and AC sources of equal voltage turn by turn. In which case (AC or DC) the rate of heat production will be more ?

(a) Which is more dangerous: AC or DC? (b) Why so?

An AC source is connected to a diode and a resistor in series. Is the current through the resistor AC or DC?

Inductance of a coil is 5 mH is connected to AC source of 220 V, 50 Hz. The ratio of AC to DC resistance of the coil is

Is the behaviour of resistance is the same in both AC and DC circuits ?

What is the difference between the frequency of AC and DC?

AB = Dc and angleABC=angleDCB . Prove that: AC = DB

Differentiate between AC and DC by giving two points .

In /_\ABC , AB : BC : DC = 3 : 1 : 3 Find the lenght of AC

Are Kirchhoff’s laws applicable to both AC and DC circuits?