In an oscilloscope, ___ adjusts the brightness of the spot by chaning the current on the control grid.

In an oscilloscope, ___ adjusts the brightness of the spot by chaning the current on the
control grid.
by

1 Answer

Answer :

intensity control
by

Related questions

The ___ provides the visual display showing the form of the signal applied as a waveform on the front screen of a cathode ray oscilloscope

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

The ___________ of a CRO controls the brightness of the spot formed on the screen a) Filament b) Grid c) Deflection plates d) Cathode

Description : The ___________ of a CRO controls the brightness of the spot formed on the screen a) Filament b) Grid c) Deflection plates d) Cathode

Last Answer : b) Grid

What kind of voltage is applied to the horizontal deflection plates of the oscilloscope?

Description : What kind of voltage is applied to the horizontal deflection plates of the oscilloscope?

Last Answer : sweep voltage

What do you call an oscilloscope that uses sampling techniques in processing signals having frequencies beyond its normal capabilities?

Description : What do you call an oscilloscope that uses sampling techniques in processing signals having frequencies beyond its normal capabilities?

Last Answer : sampling oscilloscope

An oscilloscope provides easy measurement of __ values.

Description : An oscilloscope provides easy measurement of __ values.

Last Answer : peak to peak

What is being controlled at the potentials between anode of an oscilloscope?

Description : What is being controlled at the potentials between anode of an oscilloscope?

Last Answer : Focus

Generally, oscilloscope uses what type of deflection?

Description : Generally, oscilloscope uses what type of deflection?

Last Answer : electrostatic deflection

Considered as the "heart" of the cathode ray oscilloscope.

Description : Considered as the "heart" of the cathode ray oscilloscope.

Last Answer : cathode ray tube (CRT)

Current range extension in moving coil instruments can be achieved by placing a ___ in shunt with the instrument.

Description : Current range extension in moving coil instruments can be achieved by placing a ___ in shunt with the instrument.

Last Answer : low resistance resistor

For a dynamometer to be able to measure high current, a ___ should be used.

Description : For a dynamometer to be able to measure high current, a ___ should be used.

Last Answer : current transformer

___ 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.

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

When the capacitors of a Wein Bridge are replaced by inductors, the bridge becomes ___

Description : When the capacitors of a Wein Bridge are replaced by inductors, the bridge becomes ___

Last Answer : Wein Inductance Bridge

Induction type instruments are mostly used as ___

Description : Induction type instruments are mostly used as ___

Last Answer : watt-hour meter

For amplitude measurements, ___ scale is calibrated in either volts per centimeter (V/cm), or millivolts per centimeter (mV/cm)

Description : For amplitude measurements, ___ scale is calibrated in either volts per centimeter (V/cm), or millivolts per centimeter (mV/cm)

Last Answer : vertical

When the meter is unsufficiently damped, it is considered as ___

Description : When the meter is unsufficiently damped, it is considered as ___

Last Answer : underdamped

___ ammeter is used to measure high-frequency currents.

Description : ___ ammeter is used to measure high-frequency currents.

Last Answer : thermocouple

A wheatstone bridge is balanced if ___

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

In a moving coil ammeter, a ___ is connected in series with the coil to compensate for temperature variations

Description : In a moving coil ammeter, a ___ is connected in series with the coil to compensate for temperature variations

Last Answer : swamping resistors

In VTVMS, ___ refers to the smallest signal that can be reliably measured

Description : In VTVMS, ___ refers to the smallest signal that can be reliably measured

Last Answer : sensitivity

The time interval that a waveform is high (or low) is the ___ of the signal.

Description : The time interval that a waveform is high (or low) is the ___ of the signal.

Last Answer : pulse width

The time interval between pulses is called ___

Description : The time interval between pulses is called ___

Last Answer : pulse delay

A measure of consistency or repeatability of measurements is called. ___

Description : A measure of consistency or repeatability of measurements is called. ___

Last Answer : precision

___ is used for measuring medium Q coils

Description : ___ is used for measuring medium Q coils

Last Answer : Maxwell Bridge

Error in voltmeter is due to ___

Description : Error in voltmeter is due to ___

Last Answer : loading

For time measurements, ___ scale of the scope is used.

Description : For time measurements, ___ scale of the scope is used.

Last Answer : horizontal

High sensitive DC voltmeter provides accurate reading when measuring ___ circuits.

Description : High sensitive DC voltmeter provides accurate reading when measuring ___ circuits.

Last Answer : high resistance

High sensitive DC voltmeter provides accurate reading when measuring ___ circuits.

Description : High sensitive DC voltmeter provides accurate reading when measuring ___ circuits.

Last Answer : high resistance

___ meter is the most sensitive

Description : ___ meter is the most sensitive

Last Answer : 1uA

Where is the brightness control located in a TV? A. The audio section B. The video section C. The grid-cathode circuit D. The front panel

Description : Where is the brightness control located in a TV? A. The audio section B. The video section C. The grid-cathode circuit D. The front panel

Last Answer : A. The audio section

What is feed back control ? What is feed forward control ? Discuss its application ?

Description : What is feed back control ? What is feed forward control ? Discuss its application ?

Last Answer : Feed back control: Feed back control involves the detection of the controlled variable and counteracting of charges its it's value relative to set point, by adjustment of a manipulated ... controller for a particular process application, two factors time and gain must be considered.    

What is Furnace Draft control ?

Description : What is Furnace Draft control ? 

Last Answer : Balanced draft boilers are generally used negative furnace pressure. When both forced draft and induced draft are used together, at some point in the system the pressure will be the same as that of atmosphere. ... have is a very slight (about 0.1" H20 ) negative pressure of the top of furnace.  

The zero-adjust control in an analog type ohmmeter is used to

Description : The zero-adjust control in an analog type ohmmeter is used to

Last Answer : compensate for the differing internal battery voltage

How much current does an electrostatic voltmeter require through it to operate?

Description : How much current does an electrostatic voltmeter require through it to operate?

Last Answer : zero current

It is the reciprocal of the full-scale current of a meter

Description : It is the reciprocal of the full-scale current of a meter

Last Answer : sensitivity

What is the device, which depends on the action of a movalbe permanent magnet, in aligning itself in the resultant field produced by a fixed permanent magnet or current- carrying coils whose axes are displaced by a fixed angle?

Description : What is the device, which depends on the action of a movalbe permanent magnet, in aligning itself in the resultant field produced by a fixed permanent magnet or current- carrying coils whose axes are displaced by a fixed angle?

Last Answer : moving-magnet instrument

A meter has a full-scale current of 50uA, what is its sensitivity?

Description : A meter has a full-scale current of 50uA, what is its sensitivity?

Last Answer : Is=1/50uA=20kohm/V

Decreasing the value of the shunt resistor of an ammeter, it current measuring capability

Description : Decreasing the value of the shunt resistor of an ammeter, it current measuring capability

Last Answer : increases

An instrument used to detect and measure the presence of electrical current is generally called

Description : An instrument used to detect and measure the presence of electrical current is generally called

Last Answer : galvanometer

All voltmeters except one of the following are operated by the passage of current

Description : All voltmeters except one of the following are operated by the passage of current

Last Answer : electrostatic

A type of meter that gives a precise reading of voltage, current or resistance where there is the generation of samples at the input and then feeds it to a digital read-out.

Description : A type of meter that gives a precise reading of voltage, current or resistance where there is the generation of samples at the input and then feeds it to a digital read-out.

Last Answer : DMM

What is the basic unit for measuring current flow?

Description : What is the basic unit for measuring current flow?

Last Answer : ampere

An instrument used for measuring the amount of current flowing in a circuit.

Description : An instrument used for measuring the amount of current flowing in a circuit.

Last Answer : ammeter

What is the typical full-scale deflection current of a moving coil instrument?

Description : What is the typical full-scale deflection current of a moving coil instrument?

Last Answer : 50mA

An ammeter with an internal resistance of 50 ohm(s) is used to measure a current thorugh a lod resistor Rl = 1 kohm(s). Determine the percentage error of the reading due to ammeter insertion.

Description : An ammeter with an internal resistance of 50 ohm(s) is used to measure a current thorugh a lod resistor Rl = 1 kohm(s). Determine the percentage error of the reading due to ammeter insertion.

Last Answer : 50/(50+1k)*100 = 4.76%

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?

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.

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?

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?

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Oxygen trim control strategy __ a. continuously measures the oxygen content in the flue gas b. adjusts the combustion air flow c. Continually tuning the air-fuel mixture. d. All of above

Description : Oxygen trim control strategy __ a. continuously measures the oxygen content in the flue gas b. adjusts the combustion air flow c. Continually tuning the air-fuel mixture. d. All of above

Last Answer : d. All of above

Give the four figure grid reference of a settlement with Spot height 261 -SST 10th

Description : Give the four figure grid reference of a settlement with Spot height 261 -SST 10th

Last Answer : (a) (i) 1107 (ii) 1003 (b) 1606-Radial 1007-Trellis. (c) Two natural features seen in grid 0910 are: (i) River (ii) Broken ground. (d) The distance along the metalled road from the ... dry motors can cross this area. The map extract indicates that it is a dry summer season, rains have not come.

Regarding an induction motor, the power developed by the rotor automatically adjusts itself to the _____________. A. power required to drive the load B. speed required to drive the load C. current flow in the motor stator D. torque developed by the rotating field

Description : Regarding an induction motor, the power developed by the rotor automatically adjusts itself to the _____________. A. power required to drive the load B. speed required to drive the load C. current flow in the motor stator D. torque developed by the rotating field

Last Answer : Answer: A

What is a filter used for ?

Description : What is a filter used for ?

Last Answer : The half wave and full wave signals are pulsating D . C . voltages. The use of such voltages is limited to charging batteries, running D. C. motors, and a few other applications. What we really ... voltage from a battery. To get a constant voltage from this, we can use a capacitor input filter.