1
GATE EE 2013
+2
-0.6
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 A
$$56.02$$
B
$$40.83$$
C
$$29.85$$
D
$$10.02$$
2
GATE EE 2010
+2
-0.6
The Maxwell's bridge shown in the fig. is at balance, the parameters of the inductive coil are A
$$R = {{{R_2}{R_3}} \over {{R_4}}}\,\,\,\,L = {C_4}{R_2}{R_3}$$
B
$$L = {{{R_2}{R_3}} \over {{R_4}}}\,\,\,\,R = {C_4}{R_2}{R_3}$$
C
$$R = {{{R_4}} \over {{R_2}{R_3}}}\,\,\,\,L = {1 \over {{C_4}{R_2}{R_3}}}$$
D
$$L = {{{R_4}} \over {{R_2}{R_3}}}\,\,\,\,R = {1 \over {{C_4}{R_2}{R_3}}}$$
3
GATE EE 2008
+2
-0.6
A bridge circuit is shown in the figure below. Which one of the sequence given below is most suitable for balancing the bridge? A
First adjust $${R_4},$$ and then adjust $${R_1}$$
B
First adjust $${R_2},$$ and then adjust $${R_3}$$
C
First adjust $${R_2},$$ and then adjust $${R_4}$$
D
First adjust $${R_4},$$ and then adjust $${R_2}$$
4
GATE EE 2008
+2
-0.6
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 A
$$\left( {260 + j0} \right)\,\Omega$$
B
$$\left( {0 + j200} \right)\,\Omega$$
C
$$\left( {260 - j200} \right)\,\Omega$$
D
$$\left( {260 + j200} \right)\,\Omega$$
GATE EE Subjects
Electric Circuits
Electromagnetic Fields
Signals and Systems
Electrical Machines
Engineering Mathematics
General Aptitude
Power System Analysis
Electrical and Electronics Measurement
Analog Electronics
Control Systems
Power Electronics
Digital Electronics
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