29
2.2 Parallel connection
Circuit 4:
Current measurement without shunt resistance
Setup information
Install the two resistors and then the jumper as shown in
Fig. 2.4.
Then connect the moving-coil instru-
ment. Check the placement on the board again and only then connect the battery.
Components required:
2 x 10 k
Ω
resistor,
1 x moving-coil instrument,
1 x breadboard, 1 x 9V bat-
tery with clip connector
Fig. 2.4:
Current measurement
without shunt resistance
Experiment
Once the battery is connected, the moving-coil instrument will deflect. What is the scale of the deflection? If
all is fine, the needle will deflect full-scale. As this is a voltage measurement; the voltage of the 9V battery is
indicated. Try connecting a 1.5V AA battery instead of the 9V battery. What is the deflection now?
The circuit diagram for this experiment is shown in Chap. 3, Fig. 3.4.
Summary of Contents for ELECTRONICS EXPERIMENTS BOX
Page 4: ......
Page 265: ...267 Fig 3 56 Cir cuit 56 Audio limiter Fig 3 57 Circuit 57 Amplifier for a storm detector...
Page 269: ...271 Fig 3 64 Circuit 64 Stabilizer for 1 9 V Fig 3 65 Circuit 65 Stabilizer for 2 5 V...
Page 275: ...277 Fig 3 80 Circuit 80 Quiztimer 30 seconds Fig 3 81 Circuit 81 Handy diode tester...
Page 315: ...317 Fig 3 179 Circuit 179 HF generator 150 kHz Fig 3 180 Circuit 180 HF generator 420 kHz...
