NLC Technical Quiz 2

Consider the following circuit

What is the value of current I in the above circuit?

The impulse response of linear line invariant system is given as

G (t) = 4e^–4t, t > 0

The transfer function of the system is

A 220 V, DC Machine has an armature resistance of 1 Ω. If the full load current is 20 A, the difference in induced voltage when the machine is running as a motor and as a generator is

Consider the circuit with ideal diodes as shown below:

For V_in < 0, the output voltage V_out is equal to

In a 3 - ϕ semi-converter, if firing angle is less than or equal to 60°, then the duration of conduction of each thyristor and diode would be respectively.

A divide by 78 counter can be realized by using

A 5 KW, 200 V, DC shunt motor has armature resistance and field resistance of 1 Ω and 100 Ω respectively. At no load, the motor draws 6 A from 200 V supply and runs at 1000 rpm. What is the total copper losses in the machine?