A. elastic galvanometer
B. vibration galvanometer
C. Duddlb galvanometer
D. spot ballistic galvanometer
Related Mcqs:
- A sensitive galvanometer produces large deflection for a_______________?
A. small value of current
B. large value of current
C. large value of power
D. large value of voltage
E. none of the above - Damping of the Ballistic galvanometer is made small to_______________?
A. get first deflection large
B. make the system oscillatory
C. make the system critically damped
D. get minimum overshoot - It is required to measure the true open circuit e.m.f. of a battery. The best device is_____________?
A. D.C. voltmeter
B. Ammeter and a known resistance
C. D.C. potentiometer
D. None of the above - A Weston frequency meter is_____________?
A. moving coil instrument
B. moving iron instrument
C. dynamometer instrument
D. none of the above - The principle on which vector voltmeter is based is_____________?
A. that it works on the principle of complex variation
B. that it measures the response of linear ramp voltage
C. same as digital meter
D. that it measures the amplitude of a single at two points and at the same time measures their phase difference - Most common form of A.C. meters met with in every day domestic and industrial installations are______________?
A. mercury motor meters
B. commutator motor meters
C. induction type single phase energy meters
D. all of the above - The household energy meter is_______________?
A. an indicating instrument
B. a recording instrument
C. an integrating instrument
D. none of the above - For measuring a very high resistance we should use_______________?
A. Kelvin’s double bridge
B. Wheat stone bridge
C. Meggar
D. None of the above - For measurement of mutual inductance we can use________________?
A. Anderson bridge
B. Maxwell’s bridge
C. Heaviside bridge
D. Any of the above - E.m.f. of a Weston cell is accurately measured by________________?
A. electrostatic voltmeter
B. hot wire voltmeter
C. isothermal voltmeter
D. electrodynamic voltmeter
