1
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
$$406$$ $$V$$
2
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
$$10/\sqrt 3$$
3
GATE EE 2006
+2
-0.6
A current of $$- 8 + 6\sqrt 2 \left( {\sin \,\omega t + {{30}^0}} \right)\,\,A$$ is passed though three meters. They are a center zero $$PMMC$$ meter, true $$r.m.s$$ meter and moving $${\rm I}$$ron instrument. The respective reading (in $$A$$) will be
A
$$8, 6, 10$$
B
$$8, 6, 8$$
C
$$-8, 10, 10$$
D
$$-8, 2, 2$$
4
GATE EE 2005
+2
-0.6
A $$1000$$ $$V$$ $$DC$$ supply has two $$1-core$$ cables as its positive and negative leads: their insulation resistances to earth are $$4\,\,M\Omega$$ and $$6\,\,M\Omega$$, respectively, as shown in figure. A voltmeter with resistance $$50\,\,k\Omega$$ is used to measure the insulation of the cable. When connected between the positive core and earth, the voltmeter reads
A
$$8$$ $$V$$
B
$$16$$ $$V$$
C
$$24$$ $$V$$
D
$$40$$ $$V$$
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