A periodic voltage waveform observed on an oscilloscope across a load is shown. A permanent magnet moving coil (PMMC) meter connected across the same load reads. a) 4V b) 5V c) 8V d) 10 V Ans. (a) Explanation – As …
GATE EE 2012 Electrical and Electronic Measurements Solution Q 2 Get Started
An ammeter has a current range of 0-5 A, and its internal resistance is 0.222. In order to change the range to 0-25 A, we need to add a resistance of __ (a) 0.8 Ω in series with the meter …
GATE EE 2010 Electrical and Electronic Measurements Solution Q 4 Get Started
A PMMC voltmeter is connected across a series combination of a DC voltage source V1 = 2 V and and AC voltage source V (t) = 3 sin(41) V. The meter reads _. (a) 2V (b) 5 V (c) (d) …
GATE EE 2005 Electrical and Electronic Measurements Solution Q 6 Get Started
A current of A is passed through three meters. They are a center zero PMMC meter, a true rms meter and a moving iron instrument. The respective readings (in A) will be___ (a) 8, 6, 10 (b) 8, 6, 8 …
GATE EE 2006 Electrical and Electronic Measurements Solution Q 6 Get Started
A moving iron ammeter produces a full-scale torque of 240 μNm with a deflection of 120° at a current of 10 A. The rate of change of self inductance (μH/radian) of the instrument at full scale is _. (a) 2.0 …
GATE EE 2004 Electrical and Electronic Measurements Solution Q 10 Get Started
A 1000 V DC supply has two 1-core cables as its positive and negative leads: their insulation resistances to earth are 4 MΩ and 6 MΩ, respectively, as shown in the figure. A voltmeter with a resistance of 50 kΩ …
GATE EE 2005 Electrical and Electronic Measurements Solution Q 7 Get Started
A DC ammeter has a resistance of 0.1 Ω and its current range is 0-100 A. If the range is to be extended to 0-500 A, then meter requires the following shunt resistance _. (a) 0.010 Ω (b) 0.011 Ω …
GATE EE 2005 Electrical and Electronic Measurements Solution Q 5 Get Started
A galvanometer with a full scale current of 10 mA has a resistance of 1000 Ω. The multiplying power (the ratio of measured current to galvanometer current) of 100 Ω shunt with this galvanometer is __. (a) 110 (b) 100 …
GATE EE 2004 Electrical and Electronic Measurements Solution Q 9 Get Started
A moving coil of a meter has 100 turns, and a length and depth of 10 mm and 20 mm respectively. It is positioned in a uniform radial flux density of 200 mT. The coil carries a current of 50 …
GATE EE 2004 Electrical and Electronic Measurements Solution Q 8 Get Started
A Manganin swap resistance is connected in series with a moving coil ammeter consisting of a milli-ammeter and a suitable shunt in order to. (a) minimize the effect of temperature variation (b) obtain large deflecting torque (c) reduce the size …
GATE EE 2003 Electrical and Electronic Measurements Solution Q 9 Get Started
Two 100 V full scale PMMC type dc voltmeter having figure of merits (FOM) of 10 kΩ/V and 20 kΩ/V are connected in series. The series combination can be used to measure a maximum dc voltage of __ V. Ans. …
GATE EE 1995 Electrical and Electronic Measurements Solution Q 3 Get Started
A 100 μA ammeter has an internal resistance of 100 Ω. For extending its range to measure 500 μA, the shunt resistance required is of __. (a) 20.0 Ω (b) 22.22 Ω (c) 25.0 Ω (d) 50.0 Ω Ans. (c) …
GATE EE 2001 Electrical and Electronic Measurements Solution Q 2 Get Started
