How is the loading effect of a voltmeter kept to a minimum?

How is the loading effect of a voltmeter kept to a minimum?
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1 Answer

Answer :

A voltmeter must have a high resistance compared to the circuit  being measured.
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Related questions

What is the loading effect of a voltmeter?

Description : What is the loading effect of a voltmeter?

Last Answer : The connection of a voltmeter adds a resistance in parallel with the circuit changing the total circuit resistance, and loads the circuit.

When troubleshooting most electronic circuits, 'loading effect' can be minimized by using a voltmeter with a/an ___________________. A. input impedance much greater than the impedance across which the voltage is being measured B. input impedance much less than the impedance across which the voltage is being measured C. sensitivity of less than 1000 ohms/volt D. sensitivity of more than 1000 volts/ohm

Description : When troubleshooting most electronic circuits, 'loading effect' can be minimized by using a voltmeter with a/an ___________________. A. input impedance much greater than the impedance across which the voltage ... sensitivity of less than 1000 ohms/volt D. sensitivity of more than 1000 volts/ohm

Last Answer : Answer: A

Explain sensitivity and loading effect in voltmeter.

Description : Explain sensitivity and loading effect in voltmeter.

Last Answer : Sensitivity: The sensitivity of a voltmeter is just its capability to detect voltage, usually meaning smaller and smaller voltages. When selecting a meter for a certain voltage measurement, it is ... called loading effect of the voltmeters. It is mainly caused due to low sensitivity instruments.

Describe following terms w.r.t. Analog voltmeter : (i) Sensitivity (ii) Loading effect

Description : Describe following terms w.r.t. Analog voltmeter : (i) Sensitivity (ii) Loading effect

Last Answer : Sensitivity: The sensitivity of a voltmeter is just its capability to detect voltage, usually meaning smaller and smaller voltages. When selecting a meter for a certain voltage measurement, it is ... called loading effect of the voltmeters. It is mainly caused due to low sensitivity instruments.

How the ammeter’s effect on the circuit being measured is kept to a minimum?

Description : How the ammeter’s effect on the circuit being measured is kept to a minimum?

Last Answer : The resistance of the ammeter must be much smaller than the circuit load.

When taking a voltage measurement, which lead of the voltmeter should you connect to the circuit first?

Description : When taking a voltage measurement, which lead of the voltmeter should you connect to the circuit first?

Last Answer : Ground.

On what range should you set the voltmeter prior to taking a voltage measurement?

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Last Answer : Highest.

If an ac voltmeter is connected between the S2 and S3 windings on a TX, at what two rotor positions should the voltmeter read maximum voltage?

Description : If an ac voltmeter is connected between the S2 and S3 windings on a TX, at what two rotor positions should the voltmeter read maximum voltage?

Last Answer : . 150º and 330º

What should a voltmeter read when a TX is set on coarse zero?

Description : What should a voltmeter read when a TX is set on coarse zero?

Last Answer : Approximately 37 volts.

What is the advantage of using a battery test set versus a voltmeter to test batteries?

Description : What is the advantage of using a battery test set versus a voltmeter to test batteries?

Last Answer : A battery test set will test batteries under load conditions.

What is the general function of the differential voltmeter?

Description : What is the general function of the differential voltmeter?

Last Answer : To compare an unknown voltage with a known reference voltage and indicate the difference in their values.

Why would you use a hook-on voltmeter instead of a multimeter?

Description : Why would you use a hook-on voltmeter instead of a multimeter?

Last Answer : To measure current safely and easily (with no need to disconnect the wiring of the circuit).

Why should you always use the highest range when connecting a voltmeter to a circuit?

Description : Why should you always use the highest range when connecting a voltmeter to a circuit?

Last Answer : To prevent excess current through the meter movement.

What method is used to allow a voltmeter to have several ranges?

Description : What method is used to allow a voltmeter to have several ranges?

Last Answer : The use of resistors in series with the meter movement.

What is voltmeter sensitivity?

Description : What is voltmeter sensitivity?

Last Answer : It is an indication of the resistance of the meter expressed in ohms per volt. The total resistance of the meter is the sensitivity multiplied by the full-scale voltage.

How is a voltmeter connected to the circuit to be measured?

Description : How is a voltmeter connected to the circuit to be measured?

Last Answer : In parallel.

What electrical quantity is measured by a voltmeter?

Description : What electrical quantity is measured by a voltmeter?

Last Answer : Voltage.

What term is used to express the sensitivity of a voltmeter?

Description : What term is used to express the sensitivity of a voltmeter?

Last Answer : Ohms per volt

When making voltage measurements in a high-resistance circuit, you should always use a voltmeter with what relative value of resistance?

Description : When making voltage measurements in a high-resistance circuit, you should always use a voltmeter with what relative value of resistance?

Last Answer : . High.

What are the advantages of using a differential voltmeter?

Description : What are the advantages of using a differential voltmeter?

Last Answer : Accuracy and high input impedance.

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Loading effect is principally caused by instruments

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Last Answer : B

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