Question

and Working principle of ammeter and voltmeter how they are connected to the circuit (attachment method the reason will be explained) explain by drawing a sample circuit. Kirchhoff current through the circuit you draw and explain the tension laws. (T The circuit drawn should comply with these laws)

Answer 1

working principle of Ammeter Ammeter is a meter which is used in to circuit any measure urrent. Rih E R2 The main principle of ammeter is that it must have a very low resistance and also inductive reactance. The voltage drop across ammeter Should be very low, the a an the so it has very dow impedance value. That's why it is preferreble to connect ammeter in series with circuit because of above principle and also that the current will be same in series connection. Because if arometer is to be connected in parallel it will result in short circuit and the current the that will pass through the ammeter might burn the instrument Reason: Due to above principle Stated. A Rsh Shunt resistance of very low value

Working principle_of_ Voltmeter voltmeter is a meter which is used circuit in any to measure an element connected potential (roltage) across in that particular circuit, between their two nodes. Ri R2 Its working principle is based on Ohm's law, which States that " Voltage across a resistance is directly proportional to the the current E a series passing through it. so, its principle emplies that resistance of very high value should be connected so that very minute /negligible current should flow through it. {Rse almost majority current will pass through that element which voltmeter is Hence V MA across connected. This will help to draw more voltage drop and in that way actual voltage across that element will be measure. Voltmeter should be connected in parallel so that to by-pass almost all majority part of current to that element (say Rz).

Circuit using both Ammeter and voltmeter. valtmeter + R I A - Ammeter -(0) switch (key) Battery