A galvanometer in series with a high resistance is called_______________?

Related Mcqs:

1. 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

2. If 2% of the main current is to be passed through a galvanometer of resistance G, then resistance of the shunt required is ________________?

   A. G/50
   B. G/49
   C. 49 G
   D. 50 G

3. To send 10% of the main current through a moving coil galvanometer of resistance 99 O the shunt required is______________?

   A. 11 O
   B. 9 O
   C. 100 O
   D. 9 O

4. 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

5. A series ohmmeter circuit uses a 3 V battery and a 1 mA meter movement. What is the half-scale resistance for this movement ?

   A. 3 kO
   B. kO
   C. kO
   D. 6 kO

6. An ammeter has a resistance of G ohms and range of I amperes. The value of resistance required in parallel to convert it into an ammeter of range nI is______________?

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

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

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

8. 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

9. The resistance of an ideal voltmeter is ______________?

   A. Low
   B. Infinite
   C. Zero
   D. High

10. 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