Q37 of 72 Page 12

Redraw the circuit of problem 6, putting in an ammeter to measure the current through the resistors and a voltmeter to measure the voltage across the 12 ohm resistor. What would be the readings in the ammeter and the voltmeter.

 Total voltage applied V = 4 × 2 = 8 volts
Total resistance R = 5 + 8 + 12 = 25 Ω
Therefore reading of the ammeter I = = 0.32 A
Reading of voltmeter V = IR = 0.32 × 12 = 3.84 V.

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