A moving coil multimeter of sensitivity 2000
/V is set to ‘DC 20V’, and
connected across terminals A and B in Fig. 23.1. The reading on
the multimeter will be
The answer is :- 3 On the 20 V setting the instrument will
have a resistance of 200 x 20 = 40000 . When the instrument is connected across
terminals A and B the circuit will become
Since the two 40k resistors in parallel is equivalent to one
20k resistor, we have
Thus only one third of the supply voltage (10V) will appear across A-B
| BACK |
| page (tq2312ex) |
| Some material Copyright John Bowyer G4KGS. |
| Click here for important Copyright information |
| Web Space provided by Hostroute.com Ltd |
| Contact details |