The EMF of Weston standard cell is measured using

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The EMF of Weston standard cell is measured using Potentiometer.

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Related questions

E.m.f. of a Weston cell is accurately measured by?

Last Answer : E.m.f. of a Weston cell is accurately measured by electrostatic voltmeter.

For measuring emf of a standard cell we use:

Last Answer : For measuring emf of a standard cell we use: Potentiometer

In Weston synchronoscope the moving coil is connected across?

Last Answer : In Weston synchronoscope the moving coil is connected across bus-bars.

In a Weston synchronoscope, the fixed coils are connected across?

Last Answer : In a Weston synchronoscope, the fixed coils are connected across incoming alternator.

A Weston synchronoscope is a?

Last Answer : A Weston synchronoscope is a dynamometer instrument.

A Weston frequency meter is?

Last Answer : A Weston frequency meter is moving iron instrument.

In a Weston frequency meter, the magnetic axes of the two fixed coils are?

Last Answer : In a Weston frequency meter, the magnetic axes of the two fixed coils are perpendicular.

In a standard multimeter for measuring AC voltage, parameter of _____ voltage is measured

Description : In a standard multimeter for measuring AC voltage, parameter of _____ voltage is measured

Last Answer : In a standard multimeter for measuring AC voltage, parameter of RMS voltage is measured

The self inductance of a coil can be measured using

Description : The self inductance of a coil can be measured using (A) Wien’s Bridge (B) Schering Bridge (C) Anderson’s Bridge (D) Wheatstone Bridge

Last Answer : The self inductance of a coil can be measured using Anderson’s Bridge

When the voltage across a battery is measured using a D.C potentiometer, the reading shows 1.08 V. But

Description : When the voltage across a battery is measured using a D.C potentiometer, the reading shows 1.08 V. But when the same voltage is measured using a Permanent Magnet Moving Coil (PMMC) voltmeter, the voltmeter reading shows 0.99 ... resistance of the battery, in Ohm , is (A) 150 (B) 100 (C) 50 (D) 200

Last Answer : When the voltage across a battery is measured using a D.C potentiometer, the reading shows 1.08 V. But when the same voltage is measured using a Permanent Magnet Moving Coil (PMMC) voltmeter, ... resistance of the voltmeter is 1100 Ohm , the internal resistance of the battery, in Ohm , is 100

The power of a n-phase circuit can be measured by using a minimum of

Last Answer : The power of a n-phase circuit can be measured by using a minimum of (n - 1) wattmeter elements

The frequency can be measured by using:

Last Answer : Weins bridge 

Why I wish to apologize to Galen Weston Jr?

Description : Why I wish to apologize to Galen Weston Jr?

Last Answer : Ignore the non-question.I made an error in my previous post to Galen Weston Jr. and am trying to correct it.The $119.00 should read annually, not monthly.Apologies

Where was J J Weston shotguns made?

Description : Where was J J Weston shotguns made?

Last Answer : When was J J Weston Shotguns made

With neat sketch explain working of Weston type synchroscope.

Description : With neat sketch explain working of Weston type synchroscope.

Last Answer : Weston type synchroscope:  Working: It consists of three limbed transformer. The winding on one of the outer limbs is excited from bus- bars and that on other limb by incoming machine. The two fluxes ... the lamp is flickering at a very much slow rate and it is at its maximum brightness.

Explain working of Weston type frequency meter.

Description : Explain working of Weston type frequency meter.

Last Answer : Weston Type Frequency Meter: There are two fixed coils marked as A and B. Each coil divided into two equal parts and are fixed such that their magnetic axis are perpendicular to each ... leading to deflections in either direction depending on the currents there in, due to changed impedances.

The emf of a battery is 4.0 V and its internal resistance is `1.5 Omega`. Its potential difference is measured by a voltmeter of resistance `1000 Omeg

Description : The emf of a battery is 4.0 V and its internal resistance is `1.5 Omega`. Its potential difference is measured by a voltmeter of resistance `1000 Omeg

Last Answer : The emf of a battery is 4.0 V and its internal resistance is `1.5 Omega`. Its potential ... percentage error in the reading of emf shown by voltmeter.

Which one of the following statements is not correct? A Since voltage depends on concentrations, using standard conditions makes it easier to compare different electrochemical reactions. B We have to measure the cell potential to obtain the difference in potential energy because the potential of half-reactions cannot be measured directly. C The direction of a redox reaction can only be determined experimentally. D Half-cell potentials for half-reactions are determined by combining the relevant half-cell with a standardised half-cell.

Description : Which one of the following statements is not correct? A Since voltage depends on concentrations, using standard conditions makes it easier to compare different electrochemical reactions. B We have ... half-reactions are determined by combining the relevant half-cell with a standardised half-cell.

Last Answer : C The direction of a redox reaction can only be determined experimentally. 

A d.c. potentiometer is designed to measure up to about 2V with a slide wire of 800 mm. A standard cell of

Description : A d.c. potentiometer is designed to measure up to about 2V with a slide wire of 800 mm. A standard cell of emf 1.18V obtains balance at 600 mm. A test cell is seen to obtain balance at 680 mm. The emf0fthe test cell is  A)1.00V B)1.34V C)1.50V D)1.70V 

Last Answer : A d.c. potentiometer is designed to measure up to about 2V with a slide wire of 800 mm. A standard cell of emf 1.18V obtains balance at 600 mm. A test cell is seen to obtain balance at 680 mm. The emf0fthe test cell is 1.34V

The power delivered to a 3-phase load can be measured by the use of two wattmeters only

Description : The power delivered to a 3-phase load can be measured by the use of two wattmeters only when the  (a) load is unbalanced (b) load is balanced (c) three phase load is connected to the source through three wires (d) three phase load is connected to the source through four wires

Last Answer : The power delivered to a 3-phase load can be measured by the use of two wattmeters only when the three phase load is connected to the source through three wires 

True value has been 50 whereas measured value is 40 then the percentage error in the reading

Description : True value has been 50 whereas measured value is 40 then the percentage error in the reading will be ______.  (A) 20% (B) 40% (C) 50% (D) 30%

Last Answer : True value has been 50 whereas measured value is 40 then the percentage error in the reading will be 20%. 

Dielectric loss in a capacitor is best measured by

Description : Dielectric loss in a capacitor is best measured by (A) Wien Bridge (B) Schering Bridge (C) Anderson Bridge (D) Heaviside-Campbell Equal Ratio Bridge

Last Answer : Dielectric loss in a capacitor is best measured by Schering Bridge

Low resistance is measured by

Last Answer : Low resistance is measured by Kelvin’s double bridge.

The dielectric loss of capacitance can be measured by

Last Answer : The dielectric loss of capacitance can be measured by Schering bridge.

The resistance can be measured most accurately by

Last Answer : The resistance can be measured most accurately by bridge method.

The induction of a high Q inductor can be measured by a

Last Answer : The induction of a high Q inductor can be measured by a Hay Bridge.

Alternating current is measured by?

Last Answer : Alternating current is measured by induction ammeter.

In an Anderson bridge, the unknown inductance is measured in terms of?

Last Answer : In an Anderson bridge, the unknown inductance is measured in terms of known capacitance and resistance.

A direct current can be measured by?

Last Answer : A direct current can be measured by a D.C. potentiometer in conjunction with a standard resistance.

A voltage of about 200 V can be measured?

Description :

Last Answer : A voltage of about 200 V can be measured a D.C. potentiometer in conjunction with a volt ratio box.

Resistances can be measured with the help of?

Last Answer : Resistances can be measured with the help of ohmmeters and resistance bridges.

A reading of 120 is obtained when a standard inductor was connected in the circuit of a Q-meter and the

Description : A reading of 120 is obtained when a standard inductor was connected in the circuit of a Q-meter and the variable capacitor is adjusted to a value of 300 pF. A lossless capacitor of unknown value Cx is then connected in ... value of 200 pF. The value of Cx in pF is  A) 100 B) 200 C) 300 D) 500

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The material used to make standard resistance is:

Last Answer : The material used to make standard resistance is: Manganin

Commonly used standard capacitor is?

Last Answer : Commonly used standard capacitor is concentric cylindrical type.

Standard resistor is made from?

Last Answer : Standard resistor is made from maganin.

A cell of emf E and internal resistance r is connected in series with an external resistance nr. Than what will be the ratio of the terminal potential

Description : A cell of emf E and internal resistance r is connected in series with an external resistance nr. Than what will be the ratio of the terminal potential

Last Answer : A cell of emf E and internal resistance r is connected in series with an external resistance nr. Than what will be the ... /(n + 1)` D. `(n + 1)/n`

Find the minimum number of cells required to produce an electric current of 1.5 A through a resistance of `30 Omega`. Given that the emf of each cell

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The potential difference of a cell in an open circuit is 6 V, which falls to 4 V when a current of 2 A is drawn from the cell. Calculate the emf and t

Description : The potential difference of a cell in an open circuit is 6 V, which falls to 4 V when a current of 2 A is drawn from the cell. Calculate the emf and t

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In potentiometer experiment, a cell of emf `1.25 V` gives balancing length of 30 cm. If the cell is replaced by another cell, then balancing length is

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The emf of a cell E is 15 V as shown in the figure with an internal resistance of `0.5Omega`. Then the value of the current drawn from the cell is

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Four identical cells of emf `epsilon` and internal resistance r are to be connected in series. Suppose, if one of the cell is connected wrongly, then

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Last Answer : Four identical cells of emf `epsilon` and internal resistance r are to be connected in series. Suppose, if one of ... and 4r C. 2E and 2r D. 4E and 2r

A potentiometer wire of length `100 cm` having a resistance of `10 Omega` is connected in series with a resistance `R` and a cell of emf `2V` of negli

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A wire of length 100 cm is connected to a cell of emf 2 V and negligible internal resistance. The resistance of the wire is `3 Omega`. The additional

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Last Answer : A wire of length 100 cm is connected to a cell of emf 2 V and negligible internal resistance. The ... B. `47Omega` C. `57Omega` D. `35Omega`

A voltmeter of resistance `998 Omega` is connected across a cell of emf 2 V and internal resistance `2 Omega`. Find the p.d. across the voltmeter, tha

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A cell which has an emf `1.5` V is connectedin series with an external resistance of `10Omega`. If the potential difference across the cell is `1.25`

Description : A cell which has an emf `1.5` V is connectedin series with an external resistance of `10Omega`. If the potential difference across the cell is `1.25`

Last Answer : A cell which has an emf `1.5` V is connectedin series with an external resistance of `10Omega`. If the potential ... `0.25` C. `1.5` D. `0.3`

The maximum power dissipated in an external resistance R, when connected to a cell of emf E and internal resistance r, will be

Description : The maximum power dissipated in an external resistance R, when connected to a cell of emf E and internal resistance r, will be

Last Answer : The maximum power dissipated in an external resistance R, when connected to a cell of emf E and internal resistance r, ... /(3r)` D. `(E^(2))/(4r)`

If E is the emf of a cell of internal resistance r and external resistance R, then potential difference across R is given as

Description : If E is the emf of a cell of internal resistance r and external resistance R, then potential difference across R is given as

Last Answer : If E is the emf of a cell of internal resistance r and external resistance R, then potential difference across R is given ... /R)` D. `V=E//(1+R//r)`

What is terminal potential differnce of a cell? Can its value be greater than the emf of a cell? Explian.

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Last Answer : What is terminal potential differnce of a cell? Can its value be greater than the emf of a ... C. being charged D. being either changed or discharged

The emf of a primary cell depends upon the: a) Physical dimension of the cell b) Nature of the electrolyte c) Nature of the electrode d) Both (b) and (c)

Description : The emf of a primary cell depends upon the: a) Physical dimension of the cell b) Nature of the electrolyte c) Nature of the electrode d) Both (b) and (c)

Last Answer : Ans: D

The emf of a Deniell cell “Zn | Zn2+|| Cu2+| Cu” can be increased by (A) Decreasing the surface area of the electrodes (B) Increasing the concentration of zinc sulphate solution (C) Increasing the surface area of the electrodes (D) Increasing the concentration of copper sulphate solution

Description : The emf of a Deniell cell “Zn | Zn2+|| Cu2+| Cu” can be increased by (A) Decreasing the surface area of the electrodes (B) Increasing the concentration of zinc sulphate solution (C) Increasing the surface area of the electrodes (D) Increasing the concentration of copper sulphate solution

Last Answer : (D) Increasing the concentration of copper sulphate solution