GATE EE 2017 Question Paper (11-Feb-2017) (Shift 2)

An urn contains 5 red ball and 5 black balls. In the first draw, one ball is picked at random and discarded without noticing its colour. The probability to get a red ball in the second draw is

Consider a solid sphere of radius 5 cm made of a perfect electric conductor. If one million electrons are added to this sphere, these electrons will be distributed

The figures show diagrammatic representations of vector fields $\vec{X},\vec{Y},and\vec{Z}$ respectively. Which one of the following choices is true?

The pole-zero plots of three discrete time systems P, Q and R on the z-plane are shown below.

Which one of the following is TRUE about the frequency selectivity of these system?

If a synchronous motor is running at a leading power factor, its excitation induced voltage (E${}_f$) is