Description : For time measurements, ___ scale of the scope is used.
Last Answer : horizontal
Description : A measure of consistency or repeatability of measurements is called. ___
Last Answer : precision
Description : An ammeter has a full-scale deflection current of 100mA. If the same ammeter is used to measure a full-scale current of 1.0ampere, what is the value of the shunt resistor in ohms if the voltage across the meter is 9.0 volts?
Last Answer : 10 ohms
Description : Full scale Ammeter reading is 10 mA, Voltage across Ammeter is 100 mV. Then for 100 A measurements the power loss in the circuit is a) 1 W b) 10 W c) 100 W d) 1000 W
Last Answer : Ans: 10 W*
Description : A dc bridge widely used for the accurate measurements of resistance
Last Answer : Wheatstone bridge
Description : In measurements, the sum of a set of number divided by the total number of pieces of data in the given set is called ______
Last Answer : arithmetic mean
Description : In the illustrated circuit, what is the voltage measured across R1 if the battery is 24 volts, the resistance of R1 is 34 ohms, and the resistance of R2 is 126 ohms? EL-0036 A. 24 volts B. 18.9 volts C. 5.1 volts D. 150 millivolts
Last Answer : Answer: C
Description : ___ has a series RC combination in one arm and a parallel RC combination in the adjoining arm and used as a notch filter in harmonic distortion analyzer.
Last Answer : wein bridge
Description : When the capacitors of a Wein Bridge are replaced by inductors, the bridge becomes ___
Last Answer : Wein Inductance Bridge
Description : Induction type instruments are mostly used as ___
Last Answer : watt-hour meter
Description : When the meter is unsufficiently damped, it is considered as ___
Last Answer : underdamped
Description : ___ ammeter is used to measure high-frequency currents.
Last Answer : thermocouple
Description : A wheatstone bridge is balanced if ___
Last Answer : the ratio of resistors on one side of the bridge equals the ratio of resistors on the other side
Description : In a moving coil ammeter, a ___ is connected in series with the coil to compensate for temperature variations
Last Answer : swamping resistors
Description : In VTVMS, ___ refers to the smallest signal that can be reliably measured
Last Answer : sensitivity
Description : The time interval that a waveform is high (or low) is the ___ of the signal.
Last Answer : pulse width
Description : The time interval between pulses is called ___
Last Answer : pulse delay
Description : ___ is used for measuring medium Q coils
Last Answer : Maxwell Bridge
Description : Current range extension in moving coil instruments can be achieved by placing a ___ in shunt with the instrument.
Last Answer : low resistance resistor
Description : Error in voltmeter is due to ___
Last Answer : loading
Description : In an oscilloscope, ___ adjusts the brightness of the spot by chaning the current on the control grid.
Last Answer : intensity control
Description : High sensitive DC voltmeter provides accurate reading when measuring ___ circuits.
Last Answer : high resistance
Description : For a dynamometer to be able to measure high current, a ___ should be used.
Last Answer : current transformer
Description : The ___ provides the visual display showing the form of the signal applied as a waveform on the front screen of a cathode ray oscilloscope
Last Answer : CRT
Description : ___ meter is the most sensitive
Last Answer : 1uA
Description : A device or instrument, which delivers signals of precise frequency and amplitude, usually over a wide range
Last Answer : signal generators
Description : When using a multimeter for resistance measurements, it should be calibrated by clipping the loose ends of the leads together and _____________. A. setting the instrument pointer at 'zero' ohms B. ... the plus and minus terminals D. using a special purpose resistance measuring instrument (a bridge)
Last Answer : Answer: A
Description : How long is the actual care if A scale model of a race car is 18.2 cm long and 6.9 cm wide. Each centimeter on the model represents 0.3 m on the actual car. How long is the actual car?
Last Answer : 0.0625
Description : Potentiometer wire of length `1 m` is connected in series with `490 Omega` resistance and `2 V` battery. If `0.2 mV/cm` is the potential gradient, the
Last Answer : Potentiometer wire of length `1 m` is connected in series with `490 Omega` resistance and `2 V` battery. If ... 7.9Omega` C. `5.9Omega` D. `6.9Omega`
Description : The scale of a hot-wire instrument is a/an ___function
Last Answer : squared
Description : Moving-iron instrument has a/an scale
Description : Most AC voltmeters have an rms scale which is valid only if the input signal being measured is a __ signal.
Last Answer : sinusoidal
Description : It is the reciprocal of the full-scale current of a meter
Description : Type of power-line frequency meter device utilizing a principle of balancing an indicator needle at center of a scale using magnetic fields opposing each other.
Last Answer : magnetic type
Description : A meter has a full-scale current of 50uA, what is its sensitivity?
Last Answer : Is=1/50uA=20kohm/V
Description : What is the reason why the scale of a permanent-magnet moving coil instrument is uniform?
Last Answer : because it is spring controlled
Description : Indicating instrument is assumed to be most accurate at what part of the scale?
Last Answer : at half or full
Description : On a simple ohmmeter, the 0 ohm(s0 mark is located __ of the scale
Last Answer : at far right
Description : What is the typical full-scale voltage across a moving coil voltmeter?
Last Answer : 50mV
Description : What is the typical full-scale deflection current of a moving coil instrument?
Last Answer : 50mA
Description : A galvanometer with 20 ohms coil resistence has a full-scale deflection of 10 mA. A 0.02 ohm is placed across the meter to increase its rating capacity. What is the new full scale current for the meter?
Last Answer : False.
Description : With regard to pattern electroretinogram: a. it can be used to estimate the visual acuity b. it is generated by the occipital cortex c. it is reduced in optic nerve diseases d. the signal amplitude is about 10 mV
Last Answer : it is reduced in optic nerve diseases
Description : A moving coil instrument of resistance 5 Ohm requires a potential difference of 75 mV to give a full scale deflection. The value of shunt resistance needed to give a full scale deflection at 30 A is
Last Answer : A moving coil instrument of resistance 5 Ohm requires a potential difference of 75 mV to give a full scale deflection. The value of shunt resistance needed to give a full scale deflection at 30 A is 2.5 milliOhm
Description : A potentiometer having the potential gradient of `2 mV//cm` is used to measure the difference of potential across a resistance of `10 ohm`. If a lengt
Last Answer : A potentiometer having the potential gradient of `2 mV//cm` is used to measure the difference of potential across a ... `) A. 1 B. 2 C. 5 D. 10
Description : Is the scale for a scale drawing is 8 millimeters 1 centimeter. which is larger the actual object or the scale drawing?
Last Answer : To simplify a scale, convert to the same units, drop the unitsand divide by their highest common factor:1 cm = 10 mmdrawing : object = 8 mm : 1 cm→ 8 mm : 1 × 10 mm→ 8 mm : 10 mm→ 8 : 10→ 4 : 5→ object is larger than scale drawing.
Description : if noise voltage =120 mv and signal voltage = 80 v , S/N ratio in dB is?
Last Answer : Answers is the place to go to get the answers you need and to ask the questions you want
Description : A particle of mass m is moving along a straight path through the origin of coordinates with a velocity v. The angular momentum of the particle about the origin (a) mv (b) Depends on its distance from origin (c) Is zero (d) Changes from positive to negative as it passes through the origin
Last Answer : Ans:(c)
Description : who coined the term micro program in 1951. a. T.V. Wilkes b. MV. Wilkes c. S.V. Wilkes d. DV. Wilkes
Last Answer : b. MV. Wilkes