If an ammeter reads 0 - 1mA FSD, what would you be required to do to enable it to read 10mA FSD?
- Place a 5.8 ohm resistor as a shunt in parallel with the meter.
- Place a 9.9 ohm resistor as a multiplier across the coils.
- Place a 9 ohm resistor as a multiplier in series with the meter.
Explanation
To extend a current (ammeter) range you fit a low-value shunt resistor in parallel, diverting the excess current so only full-scale current still flows through the movement. A multiplier in series is the technique for extending a voltmeter range, not a current range, so the series-multiplier options are wrong in principle.
vale asking:
Can someone explain pls?
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