NLC Technical Quiz 8

Consider the following statements:

X. The kirchoff’s Laws are valid only for linear networks

Y. The Ohm’s law is applicable only to the lumped elements

Z. The Ohm’s law is valid only at a constant temperature and pressure.

Which of the above statements is/are true

The system shown in the figure has a unit step input. In order that the steady stat error is 0.2 the value of k required is

A 3 phase 10 –pole star connected alternator runs at 600 rpm. It has 140 slots with 10 conductor per slot. The slot harmonics may be of order?

Which of the following technique is used in algorithms in machine learning

In the given figure a npn transistor is provided with voltage divider biasing. Determine the voltage, V_A.

For the given 3-core belted cable C_C is the capacitance between two conductor & C_e is the capacitance between the core & the earth. Consider C_a is the capacitance when all three conductors are bundled together. When two conductor are connected to the sheath & capacitance between the remaining phase conductor to the ground is measured as C_b. Then calculate the expression for the phase capacitance for 3-core belted cable in term of C_a & C_b?

A 2-wire d.c. distributor cable AB is 2 km long and supplies loads of 100 A, 150 A, 200 A and 50 A situated 500 m, 1000 m, 1600 m, and 2000 m from the feeding point A. Each conductor has a resistance of 0·01 Ω per 1000 m. Determine the potential at point D, if the potential difference of 300 V is maintained at point A.

Which one of the following instrument is  preferred to use at high frequency range for measurement of current?

The unit of specific resistance of a substance is:

A 100 kW three phase delta connected motor works on a supply of three phase voltage of 3.3 KV. The motor efficiency is 92% and p.f is 90% the line current drawn by motor will be: