Assertion (A): Even if TTL gates and CMOS gates used in a realization have the same power supply of + 5 V, suitable circuit is needed to interconnect them

Reason (R): VOH, VOL, VIH and VIL of a TTL gave are respectively 2.4, 0.4, 2 and 0.8 V respectively. If supply voltage is + 5 V. VIL and VIH for CMOS gate for the supply voltage of + 5 V are 1.5 V and 3.5 V respectively.

In a shift left register, shifting a bit by one bit means

A + A . B =

A 4 bit modulo 16 ripple counter uses JK flip-flops. If the propagation delay of each FF is 50 ns. The max. clock frequency that can be used is equal to

When microprocessor processes both positive and negative numbers, the representation used is

A single phase half wave converter is used to charge a battery of 50 V. The thyristor is continuously fired by dc signal. Input voltage is v = Vm sin ωt. The thyristor will conduct

A single phase step up cycloconverter changes 50 Hz to 100 Hz. Then one half wave of input will give rise to

The degradation of satellite solar cells with time is mainly due to

Depending on the technique used, digitized television requires a bit rate between __________ millions.

In a stop-and-wait ARQ system, the transmitting terminal

A trimmer is basically a

Modulated carrier power in FM

If the Nyquist plot does not encircle the (-1 + j0) point the system is always stable.

For type 1 system the velocity lag error is

Thermistor is used in

Assertion (A): In Figure, the intercept of the line on y-axis is equal to N (ae + ai), where N is number of atoms/m3, ae is electronic polarizability and ai is ionic polarizability.

Reason (R): ae and ai are independent of temperature.

Assertion (A): If difference between static and optical dielectric constant is high, the mechanical compressiblity of that material is also high.

Reason (R): For soft ions, ionic polarization per unit field is higher than that of hard ions.

Assertion (A): When an electron is revolving in its orbit and magnetic field is also present, the angular frequency of electron will be affected by the magnetic field.

Reason (R): In the case of electron revolving in its orbit in the presence of magnetic field, the orbital magnetic dipole moment is not affected by the presence of magnetic field.

Ferrites have

Assertion (A): If E is available energy state eV and EF is Fermi level, then probability of energy state E being occupied = 0.5.

Reason (R): .