The most accurate device for measuring voltage is ____________?

Related Mcqs:

1. The sensitivity of a voltmeter which uses a 100 µA meter movement is ____________?

   A. 1 kO/V
   B. 10 kO/V
   C. 5 kO/V
   D. Data insufficient

2. The input resistance of a VTVM is about ______________?

   A. 1000 O
   B. 10 kO
   C. 20 kO
   D. 10 MO

3. An ammeter is connected in __________ with the circuit element whose current we wish to measure?

   A. Series
   B. Parallel
   C. Series or parallel
   D. None of the above

4. A voltmeter should have ____________resistance?

   A. Zero
   B. Very high
   C. Very low
   D. None of the above

5. A galvanometer in series with a high resistance is called_______________?

   A. An ammeter
   B. A voltmeter
   C. A wattmeter
   D. None of the above

6. A galvanometer of resistance G is shunted by a very small resistance S. The resistance of the resulting ammeter is ______________?

   A. GS/(G+S)
   B. G+S
   C. G-S
   D. None of the above

7. What is the total resistance of a voltmeter on the 10 V range when the meter movement is rated for 50 µA of full-scale current ?

   A. 10 kO
   B. 20 kO
   C. 200 kO
   D. None of the above

8. Two multimeters A and B have sensitivities of 10 kO/V and 30 kO/V respectively. Then ______________?

   A. Multimeter A is more sensitive
   B. Multimeter B is more sensitive
   C. Both are equally sensitive
   D. None of the above

9. Which of the following is likely to have the largest resistance ?

   A. Voltmeter of range 10 V
   B. Moving coil galvanometer
   C. Ammeter of range 1 A
   D. A copper wire of length 1 m and diameter 3 mm

10. A voltmeter has a resistance of G ohms and range V volts. The value of resistance required in series to convert it into voltmeter of range nV is________________?

    A. nG
    B. G/n
    C. G/(n-1)
    D. (n-1)G