Kirchoff's Law is universally applicable, to AC as well as DC loops.
The voltages or currents must be added vectorially, rather than algebraically.
yes it is applicable for ac and dc .
Both
yes
because it doesnt
Current filtering
due to presence of passive elements
of course you can
You can apply KCL (Kirchhoff's Current Law) and KVL (Kirchhoff's Voltage Law) in both AC and DC analysis. It just gets complicated in AC, because now you have to consider capacitive and inductive reactance, phase angle, power factor, etc. Even in a purely resistive circuit, one without capacitors or inductors, you need to consider AC analysis techniques if the frequency is sufficiently high, because of parasitic reactance that is always present. Kirchhoff's laws are the laws of nature for electrical and electronic circuits.
Yes. Kirchhoff's laws (current and voltage) are the laws of nature for electrical and electronic circuits.
The current in any AC circuit reverses every cycle.
ac supply is given and then in the circuit rectifier converts ac to dc
No.
In a DC circuit (battery), the lower potential is always on one 'end' of the circuit so the current always flows in the same direction. In a AC circuit, a wave is generated so each end cycles between high and low potential. Current always flows towards lower potential and changes direction every time the higher/ lower potential changes
An RL circuit is a circuit containing resistance (R) and an inductance (L).
this is because you have a short in either the the ac circuit or the fan/blower circuit. You'll know know which one by turning the fan on without the ac, and if it doesn't blow the fuse then you know it's the ac circuit.
Kirchoff's Voltage and Current Laws apply to all AC circuits as well as DC circuits. Other laws, such as Ohm's law and Norton and Thevanin equivalents apply equally as well. The complicating factor is that, at AC, current and voltage are not usually in phase with each other, unless it is a simple resistive circuit. That makes the math harder, but it does not make it invalid or impossible.
Impedance
Transistor are DC output, Triac are AC output.
No, it is DC