Resistances can be measured with the help of?

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1 Answer

Answer :

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

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Related questions

Accurate measurement of very low resistances is possible with

Description : Accurate measurement of very low resistances is possible with (A) Megger (B) Wheatstone Bridge (C) Kelvin’s Double Bridge (D) Wagner’s Earthing Device

Last Answer : Accurate measurement of very low resistances is possible with Kelvin’s Double Bridge

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%. 

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

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

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.

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.

Series parallel resistances problem solution

Description : Series parallel resistances problem solution

Last Answer : Series parallel resistances problem solution

The internal resistances of an ideal current source, and an ideal voltage source are, respectively,

Description : The internal resistances of an ideal current source, and an ideal voltage source are, respectively, (A) 0, ∞ (B) ∞, ∞ (C) ∞, 0 (D) 0,0

Last Answer : The internal resistances of an ideal current source, and an ideal voltage source are, respectively, ∞, 0

With three resistances connected in parallel, if each dissipates 20 W the ...

Description :  With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals?

Last Answer : Power is the only thing which is additive in both connection whether it is parallel or series connection so total power consumed will addition of all individual power =20+20+20 = 60 watt

Two resistances Rl and Ri are connected in series across the voltage...

Description : Two resistances Rl and Ri are connected in series across the voltage source where Rl>Ri. The largest drop will be across?

Last Answer : Two resistances Rl and Ri are connected in series across the voltage source where Rl>Ri. The largest drop will be across Rl.

In a series circuit with unequal resistances?

Description : In a series circuit with unequal resistances?

Last Answer : In a series circuit with unequal resistances the highest resistance has the highest voltage drop.

are AC and DC resistances same?

Description : are AC and DC resistances same?

Last Answer : Resistance is the ability of a circuit or element (which is called resistor) to oppose current. Examples of Resistors with the ability of high resistance are Wood, Air, Mica, Glass, Rubber, Tungsten ... constant. Therefore, only the original resistance of wire comes into play. they are not the same

How is energy measured ?

Description : How is energy measured ?

Last Answer : How is energy measured What is energy? Energy is the ability to do work and results in a change. It is a very commonly used word in our everyday lives. Different Forms of Energy Energy exists as ... for one hour. Horsepower is another unit of measuring energy. 1 HP is equivalent to 745.7 watts.

The load of a consumer is generally measured in terms of :

Description : The load of a consumer is generally measured in terms of : (A) Volts (B) Amperes (C) Ampere hour (D) kW

Last Answer : The load of a consumer is generally measured in terms of : kW

In a battery, the difference between the no-load voltage and the measured voltage output is called ________

Description : In a battery, the difference between the no-load voltage and the measured voltage output is called ________ A) Internal voltage B) Internal resistance C) External resistance D) All the above

Last Answer : In a battery, the difference between the no-load voltage and the measured voltage output is called Internal resistance

The power consumed by a balanced 3-ph load is measured by two-wattmeter method. The meter readings are

Description : The power consumed by a balanced 3-ph load is measured by two-wattmeter method. The meter readings are 8 kW and 4 kW. The power factor of the load is (A) zero (B) 0.5 (C) between zero and 0.5 (D) between 0.5 and unity

Last Answer : The power consumed by a balanced 3-ph load is measured by two-wattmeter method. The meter readings are 8 kW and 4 kW. The power factor of the load is between 0.5 and unity

Liquid flow rate is measured using

Description : Liquid flow rate is measured using (A) a pirani gauge (B) a pyrometer (C) an orifice plate (D) a bourdon tube

Last Answer : Liquid flow rate is measured using an orifice plate

Iron loss of a transformer can be measured by?

Last Answer : Iron loss of a transformer can be measured by low power factor wattmeter.

Which of the following instruments can be used for measurement of very high value resistances such as

Description : Which of the following instruments can be used for measurement of very high value resistances such as insulation resistance in industries? A) Wheatstone bridge B) Megger C) Ohm-meter D) Resistive potentiometer 

Last Answer : Which of the following instruments can be used for measurement of very high value resistances such as insulation resistance in industries? A) Wheatstone bridge B) Megger C) Ohm-meter D) Resistive potentiometer 

If an inductance is connected in one arm of bridge and resistances in the remaining three arms?

Last Answer : If an inductance is connected in one arm of bridge and resistances in the remaining three arms the bridge cannot be balanced.

A transmission line of unknown impedance is terminated with two different resistances, and an SWR is measured each time. With a 75 Ω termination, the SWR measures 1.5. With a 300 Ω termination, it measures 2.67. What is the impedance of the line? A. 100 Ω B. 212 Ω C. 300 Ω D. 112 Ω

Description : A transmission line of unknown impedance is terminated with two different resistances, and an SWR is measured each time. With a 75 Ω termination, the SWR measures 1.5. With a 300 Ω termination, it measures 2.67. What is the impedance of the line? A. 100 Ω B. 212 Ω C. 300 Ω D. 112 Ω

Last Answer : D. 112 Ω

What is the range of resistances that can be measured using following.

Description : What is the range of resistances that can be measured using following. 

Last Answer : a. Wheatstone bridge – 1 milli Ω to 11 MΩ. b. Kelvins double bridge – 0.2 micro Ω to 11 Ω. c. Megger – Insulation resistances more than 100 kΩ

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 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 

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

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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 EMF of Weston standard cell is measured using

Last Answer : The EMF of Weston standard cell is measured using Potentiometer.

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.

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 

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 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.

Two cells connected in series have electromotive force of 1.5 V each. Their internal resistances are `0.5 Omega` and `0.25 Omega` respectively. This c

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Last Answer : Two cells connected in series have electromotive force of 1.5 V each. Their internal ... potential differnce across the terminals of each cell.

Two cells of emf of 1.5 V and 2.0 V having internal resistances of `1 Omega` and `2 Omega`, respectively are connected in parallel so as to send curre

Description : Two cells of emf of 1.5 V and 2.0 V having internal resistances of `1 Omega` and `2 Omega`, respectively are connected in parallel so as to send curre

Last Answer : Two cells of emf of 1.5 V and 2.0 V having internal resistances of `1 Omega` and `2 Omega` ... of `5 Omega`. Find the current in the external circuit.

When a current of 0.5 A is passed through two resistances in series, the potential difference between the ends of the series arrangement is 12.5 V. On

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Find the potential difference between the points A and B in the circuit shown in Fig. 4.66. Internal resistances of the cells are negligible.

Description : Find the potential difference between the points A and B in the circuit shown in Fig. 4.66. Internal resistances of the cells are negligible.

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A combination of four resistances is shown in Fig. 4.59. Calculate the potential difference between the points P and Q, and the values of currents flo

Description : A combination of four resistances is shown in Fig. 4.59. Calculate the potential difference between the points P and Q, and the values of currents flo

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Given three resistances of `30 Omega` each. How can they be connected to given a total resistance of (i) `90 Omega (ii) 10 Omega (iii) 45 Omega` ?

Description : Given three resistances of `30 Omega` each. How can they be connected to given a total resistance of (i) `90 Omega (ii) 10 Omega (iii) 45 Omega` ?

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How can the resistances of `2Omega, 3 Omega " and " 6 Omega` be connected to give an effective resistance of `4 Omega` ?

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Two wires of different materials have resistances in the ratio `4 : 3`, lengths in the ratio `2 : 1` but have same radii of cross-section. Compare the

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Two wires of the same material have resistances in the ratio ` 16 : 81` and lengths in the ratio ` 1 : 4`. Compare their radii of cross-section.

Description : Two wires of the same material have resistances in the ratio ` 16 : 81` and lengths in the ratio ` 1 : 4`. Compare their radii of cross-section.

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A metallic wire of length 1 m is stretched to duble its length. Calculate the ratio of its initial and final resistances assuming that there is no cha

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Two wires of the same materical having equal area of cross-section have L and 2L. Their respective resistances are in the ratio

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Two resistors of resistances `2Omega` and `6Omega` are connected in parallel. This combination is then connected to a battery of emf 2 V and internal

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Three resistances `2 Omega, 3 Omega` and `4 Omega` are connected in parallel. The ratio of currents passing through them when a potential difference i

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`A, B` and `C` are voltmeters of resistances `R, 1.5R` and `3R` respectively. When some potential difference is applied between `x` and `y` the voltme

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Two batteries of emf `epsilon_(1)` and `epsilon_(2) (epsilon_(2)gtepsilon_(1)` and internal resistances `r_(1)` and `r_(2)` respectively are connected

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