which of the fallowing parameters should be considered while connecting a voltmeter into a DC circuit a=rms b=Resistance c=polarity
Answers
The Resistance (Option b) parameters should be considered while connecting a voltmeter into a DC circuit.
The electrical resistance of a conductor is essentially dependent on its temperature and the frequency of the voltage.
You can easily circumvent the frequency dependence by using a DC power source during the measurement.
Answer:
Polarity is the parameter that should be considered when connecting a voltmeter into a DC circuit.
Option (b)
Explanation:
When connecting the voltmeter into the DC circuit we must aware of the polarities of the meter. If the polarities of meter is not connected then the scale will move in the direction of reverse. As a result, it leads to the damage in the meter and the measurement. So, polarity is the parameter that should be considered.