1
GATE EE 2014 Set 1
Numerical
+2
-0
The reading of voltmeter $$(rms)$$ in volts, for the circuit shown in the figure is ______.
2
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 ___________.
3
GATE EE 2012
+2
-0.6
An analog voltmeter uses external multiplier settings. With a multiplier setting of $$20\,\,k\Omega ,$$ it reads $$440$$ $$V$$ and with a multiplier setting of $$80$$ $$k\Omega ,$$ it reads $$352$$ $$V.$$ For a multiplier setting of $$40$$ $$k\Omega ,$$ the voltmeter reads
A
$$371$$ $$V$$
B
$$383$$ $$V$$
C
$$394$$ $$V$$
D
$$406$$ $$V$$
4
GATE EE 2009
+2
-0.6
An average-reading digital multimeter reads $$10V$$ when fed with a triangular wave, symmetric about the time axis. For the same input an rms reading meter will read.
A
$$20/\sqrt 3$$
B
$$10/\sqrt 3$$
C
$$20/\sqrt 3$$
D
$$10/\sqrt 3$$
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