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.Management Sciences
Category: Electronic instruments
A galvanometer in series with a high resistance is called_______________?
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A. An ammeter
B. A voltmeter
C. A wattmeter
D. None of the above
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
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
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
The sensitivity of a multimeter is given in _______________?
A. O
B. Amperes
C. kO/V
D. none of the above
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
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
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