The input resistance of a VTVM is about ______________?

Related Mcqs:

1. A VTVM has_____________input resistance than that of a multi meter?

   A. More
   B. Less
   C. Same
   D. None of the above

2. A VTVM is never used to measure ______________?

   A. Voltage
   B. Current
   C. Resistance
   D. None of the above

3. 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

4. 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

5. 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

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. An ideal ammeter has ______________ resistance?

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

8. The resistance of an ideal voltmeter is ______________?

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

9. An ammeter should have_____________ resistance?

   A. Infinite
   B. Very large
   C. Very low
   D. None of the above

10. 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