J & K CET Engineering J and K - CET Engineering Solved Paper-2003

  • question_answer
    To increase the range of a voltmeter, we need    to connect a suitable                        

    A)  high resistance in parallel                

    B)  high resistance in series                 

    C)  low resistance in series                    

    D)  low resistance in parallel                  

    Correct Answer: B

    Solution :

    A voltmeter is an instrument used for measuring the voltage between two points in an electric circuit.   The voltage can be measured by allowing it to pass a current through a resistance, therefore, a voltmeter can be seen as a very high resistance ammeter. In order to increase the range of voltmeter, the instrument should draw a minimum of electric current to operate. This is achieved by using a sensitive ammeter or micrometer in series with a high resistance.


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