841. 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

842. For display of signal pattern _____________voltage is applied to the horizontal plates of a CRO?
A. Sinusoidal
B. Rectangular
C. Sawtooth
D. None of the above

843. 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

844. 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

845. The input resistance of a VTVM is about ______________?
A. 1000 O
B. 10 kO
C. 20 kO
D. 10 MO

846. 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

847. An ammeter should have_____________ resistance?
A. Infinite
B. Very large
C. Very low
D. None of the above

848. A voltmeter should have ____________resistance?
A. Zero
B. Very high
C. Very low
D. None of the above

849. A voltmeter is connected in a _____________ with the circuit component across which potential difference is to be measured?
A. Parallel
B. Series
C. Series or parallel
D. None of the above

850. A VTVM has_____________input resistance than that of a multi meter?
A. More
B. Less
C. Same
D. None of the above

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