An ammeter should have_____________ resistance?

Related Mcqs:

1. 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

2. 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

3. An ideal ammeter has ______________ resistance?

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

4. 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

5. When an ammeter is inserted in the circuit, the circuit current will _____________?

   A. Increase
   B. Decrease
   C. Remain the same
   D. None of the above

6. 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

7. 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

8. If a multimeter has a sensitivity of 1000 O per volt and reads 50 V full scale, its internal resistance is _____________?

   A. 20 kO
   B. 50 kO
   C. 10 kO
   D. None of the above

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

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

10. 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