. Redraw the circuit of Question 1 putting an ammeter to measure the current through the resistors


and a voltmeter to measure the potential difference across the 12 n resistor.What would be the reading in the ammeter and the voltmeter

(i) Calculation of current flowing in the circuit. The three resistors of 5  , 8  and 12  are connected in series. So, net resistance in series is the sum of all the resistances.

(ii) Calculation of potential difference across the 12  resistor. From (i) we have calculated that a current of 0.24 A flows in the circuit. Since, in series same current flows through the whole circuit. The same current of 0.24 A also flows through the 12 .

 

Best Answer

Answer: We redraw the circuit by including an ammeter circuit and a voltmeter across the 12 resistor, as shown in figure. Please note that the ammeter is always connected n series with the circuit but the voltmeter has been put in parallel with the 12  resistor

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