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A Weston frequency meter is download
The Weston frequency meter is a moving iron instrument used for measuring the unknown frequency of a signal. The frequency meter consists one inductive and one resistive coil. When the frequency of the signal varies from standard frequency, the current distribution across the coils becomes changes. The main principle of working of weston type frequency meter is that "when an current flows through the two coils which are perpendicular to each other, due to these currents some magnetic fields will produce and thus the magnetic needle will deflects towards the stronger magnetic field showing the measurement of. Question is ⇒ A Weston frequency meter is, Options are ⇒ (A) moving coil in. strument, (B) moving iron instrument, (C) dynamometer instrument, (D) none of the above, (E), Leave your comments or Download question paper.
Question is ⇒ A Weston frequency meter is, Options are ⇒ (A) moving coil instrument, (B) moving iron instrument, (C) dynamometer instrument, (D) induction instrument, (E), Leave your comments or Download question paper. Both these fields act upon the soft iron needle. The position of the needle depends upon the relative magnitudes of the two fields and hence of the currents. The meter is designed in such a way that the values of various resistances and inductances are such that for normal frequency of supply, the value of voltage drops. Category. Measurements and Instrumentation. Related Topics. Assertion (A): Wien bridge can be used for measuring (R): A frequency meter for 50 Hz system has a frequency range of 40 to 60 Hz. Assertion (A): A power factor meter operates on dynamometer principle. Reason (R): A power factor meter.
MCQ: A Weston frequency meter is? [RRB ] A) Moving coil instrument B) Moving iron instrument C) dynamometer instrument D) None Must share with. 4 Feb Weston Frequency Meter Points: Weston Frequency Meter This is the moving iron instrument which operates on the principle of variation of impedance in an inductive circuit with the variation in supply frequency. The construction and internal connections of the instrument are shown. It consists of two pairs. 19 May A Weston frequency meter is (A) moving coil In a low power factor wattmeter the compensating coil is connected (A) in series with Answer ⇓. C. Which of the following ammeter is preferred to measure high frequency currents? (A) moving iron. (B) moving coil. (C) dynamo meter. (D) thermocouple.