1
GATE EE 2018
MCQ (Single Correct Answer)
+2
-0.67
A 0-1 Ampere moving iron ammeter has an internal resistance of 50 m$$\Omega $$ and inductance of 0.1 mH. A shunt coil is connected to extend its range to 0-10 Ampere for all operating frequencies. The time constant in milliseconds and resistance in m$$\Omega $$ of the shunt coil respectively are
A
2, 5.55
B
2, 1
C
2.18, 0.55
D
11.1, 2
2
GATE EE 2016 Set 1
Numerical
+2
-0
A dc voltage with ripple is given by $$v\left( t \right)\,\,\,\, = \,\,\,\,\left[ {100 + 10\sin \left( {\omega t} \right) - 5\sin \left( {3\omega t} \right)} \right]$$ volts. Measurements of this voltage $$v\left( t \right),$$ made by moving-coil and moving iron voltmeters, show readings of $${V_1}$$ and $${V_2}$$ respectively. The value of $${V_2} - {V_1},$$ in volts, is _______.
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3
GATE EE 2014 Set 1
Numerical
+2
-0
The reading of voltmeter $$(rms)$$ in volts, for the circuit shown in the figure is ______. GATE EE 2014 Set 1 Electrical and Electronics Measurement - Basic of Indicating Instruments Question 10 English
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4
GATE EE 2014 Set 1
Numerical
+2
-0
The dc current flowing in a circuit is measured by two ammeters, one PMMC and another electrodynamometer type, connected in series. The PMMC meter contains 100 turns in the coil, the flux density in the air gap is 0.2 Wb/m2 , and the area of the coil is 80 mm2. The electrodynamometer ammeter has a change in mutual inductance with respect to deflection of 0.5 mH/deg. The spring constants of both the meters are equal. The value of current, it which the deflection of the two meters are same, is ___________.
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