Measurement of Resistance and A.C Bridges · Electrical and Electronics Measurement · GATE EE
Marks 1
1
A balanced Wheatsone bridge ABCD has the following arm resistances :
RAB = 1 k$$\Omega$$ $$\pm$$ 2.1%; RBC = 100 $$\Omega$$ $$\pm$$ 0.5%; RCD is an unknown resistance; RDA = 300 $$\Omega$$ $$\pm$$ 0.4%. The value of RCD and its accuracy is
GATE EE 2022
2
When the Wheatstone bridge shown in the figure is used to find the value of resistor $${R_x},$$ the galvanometer $$G$$ indicates zero current when $${R_1} = 50\,\Omega ,\,\,{R_2} = 65\,\Omega $$ and $$\,{R_3} = 100\,\Omega ,\,\,$$ If $${R_3}$$ is known with $$\, \pm 5\% \,$$ tolerance on its nominal value of $$100\,\Omega .$$ What is the range of $${R_x}$$ in Ohms?

GATE EE 2015 Set 1
3
The bridge method commonly used for finding mutual inductance is
GATE EE 2012
4
The bridge circuit shown in the fig below is used for the measurement of an unknown element Zx. The bridge circuit is best suited when Zx is a

GATE EE 2011
5
Kelvin double bridge is best suited for the measurement of
GATE EE 2002
6
A Kelvin double bridge is best suited for the measurement of
GATE EE 1995
Marks 2
1
An unbalanced $$DC$$ Wheatstone bridge is shown in the figure. At what value of $$p$$ will the magnitude of $${V_0}$$ be maximum?

GATE EE 2015 Set 1
2
In the bridge circuit shown, the capacitors are loss free. At balance, the value of capacitance C1 in microfarad is ________.

GATE EE 2014 Set 3
3
A strain gauge forms one arm of the bridge shown in the figure below and has a nominal resistance without any load as $$\,{R_s} = 300\Omega .$$ Other bridge resistance are $$\,{R_1} = {R_2} = {R_3} = 300\Omega .\,\,$$ The maximum permissible current through the strain gauge is $$20$$ $$mA.$$ During certain measurement when the bridge is excited by maximum permissible voltage and the strain gauge resistance is increased by $$1$$% over the nominal value, the output voltage $${V_0}$$ in $$mV$$ is

GATE EE 2013
4
The Maxwell's bridge shown in the fig. is at balance, the parameters of the inductive coil are

GATE EE 2010
5
A bridge circuit is shown in the figure below. Which one of the sequence given below is most suitable for balancing the bridge?
GATE EE 2008
6
The ac bridge shown in the figure is used to measure the impedance $$Z.$$ If the bridge is balanced for oscillator frequency $$f=2$$ $$kHz$$, then the impedance $$Z$$ will be
GATE EE 2008
7
$${R_1}$$ and $${R_2}$$ are the opposite arms of $${R_3}$$ and $${R_4}$$ of a wheat stone bridge. The source voltage is applied across $${R_1}$$ and $${R_3}$$ under balanced conditions, which one of the following is true?
GATE EE 2006
8
The items in List $$-$$ $${\rm I}$$ represent the various types of measurements to be made with a reasonable accuracy using a suitable bridge. The items in List $$-$$ $${\rm II}$$ represent the various bridges available for this purpose. Select the correct choice of the item in List $$-$$ $${\rm II}$$ for the corresponding item in List $$-$$ $${\rm I}$$ from the following.
List $$-$$ $${\rm I}$$
$$A.$$ Resistance in the milli Ohm range
$$B.$$ Low values of Capacitance
$$C.$$ Comparison of resistances which are nearly equal
$$D.$$ Inductance of a coil with a large time $$-$$ constant
List $$-$$ $${\rm II}$$
$$1.$$ Wheatstone Bridge
$$2.$$ Kelvin Double Bridge
$$3.$$ Schering Bridge
$$4.$$ Wien's Bridge
$$5.$$ Hay's Bridge
$$6.$$ Carry $$-$$ Foster Bridge
GATE EE 2003