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What is a RC, LR, LC and LCR circuits ?

Derivation Of The Expression For The Impedance Of A Series LCR Circuit

What do you mean by thermoelectric effect?

With the help of a circuit diagram describe the method to find the internal resistance of a cell using potentiometer.

State principle of potentiometer.

State principle of meter bridge. Describe how it is used to determine the resistance of a wire.

State and apply krichoff's rule to measure the unknown resistance of a wire by using wheatstone bridge circuit.

how can you convert galvanometer into voltmeter and ammeter