A TV picture is to be transmitted over a channel of 6 MHz bandwidth at adB S/N ratio. The capacity of the channel is

An 8 level encoding scheme is used in a PCM system ofkHz channel BW. The channel capacity is

As the temperature increases the mobility of electrons __________ .

In a 4 bit weighted resistor D/A converter, the resistor value corresponding to LSB iskΩ. The resistor value corresponding to MSB will be

If the characteristic equation of a closed loop system is s² + 2s +then the system is :

As the temperature increases the mobility of electrons __________ .

The current i(t) through aΩ resistor in series with an inductance is given by i(t) = 3 + 4 sin (100t + 45°) + 4 sin (300t + 60°) Amperes. The RMS value of the current and the power dissipated in the circuit are

For static electric and magnetic fields in an homogenous source-free medium, which of the following represents the correct form of Maxwell's equations?

Given digits4 how many distinct 4 digit numbers greater thancan be formed?

Calculate the stability factor and change in I_c from 25°C to 100°C for, β =R_B/R_E =ΔI_CO = 19.9 nA for emitter bias configuration

In amplitude modulation, carrier signals A cos ωt has its amplitude A modulated in proportion with message bearing (low frequency) signal m(t). The magnitude of m(t) is chosen to be __________ .

Assertion (A): Conductors do not permit propagation of waves more than a short distance into the conductor at microwave frequencies.

Reason (R): The relaxation time constant for conductors is much small than the period of centimetric EM wave.

An antisymmetric filter having odd number of coefficient may have a performance as

For real values of x, the minimum value of the function f(x) exp (x) + exp (- x) is

Find V_x V_y V_z

An air-filled rectangular waveguide has dimensions 8cm x 10cm . The phase velocity of guided wave at frequency of 3 GHz for TE₁₀ mode is

A TV picture is to be transmitted over a channel of 6 MHz bandwidth at adB S/N ratio. The capacity of the channel is

As the temperature increases the mobility of electrons __________ .

The analog signal given below is sampled atsamples per second. m(t) = 2 sinpt + 3 sinpt + 4 sinpt + 5 sinpt + 6 sinpt + 7 sinpt. The folding (maximum) frequency is __________ .

Find V_x V_y V_z

An air-filled rectangular waveguide has dimensions 8cm x 10cm . The phase velocity of guided wave at frequency of 3 GHz for TE₁₀ mode is

A TV picture is to be transmitted over a channel of 6 MHz bandwidth at adB S/N ratio. The capacity of the channel is

As the temperature increases the mobility of electrons __________ .

The analog signal given below is sampled atsamples per second. m(t) = 2 sinpt + 3 sinpt + 4 sinpt + 5 sinpt + 6 sinpt + 7 sinpt. The folding (maximum) frequency is __________ .

The analog signal given below is sampled atsamples per second. m(t) = 2 sinpt + 3 sinpt + 4 sinpt + 5 sinpt + 6 sinpt + 7 sinpt. The folding (maximum) frequency is __________ .

In a 4 bit weighted resistor D/A converter, the resistor value corresponding to LSB iskΩ. The resistor value corresponding to MSB will be

In a 4 bit weighted resistor D/A converter, the resistor value corresponding to LSB iskΩ. The resistor value corresponding to MSB will be

An air-filled rectangular waveguide has dimensions 8cm x 10cm . The phase velocity of guided wave at frequency of 3 GHz for TE₁₀ mode is

The analog signal given below is sampled atsamples per second. m(t) = 2 sinpt + 3 sinpt + 4 sinpt + 5 sinpt + 6 sinpt + 7 sinpt. The folding (maximum) frequency is __________ .

Find V_x V_y V_z

The star equivalent C₁ C₂, C₃ of the delta network is respectively

For real values of x, the minimum value of the function f(x) exp (x) + exp (- x) is

Assertion (A): Conductors do not permit propagation of waves more than a short distance into the conductor at microwave frequencies.

Reason (R): The relaxation time constant for conductors is much small than the period of centimetric EM wave.

The value of the integral is

An antisymmetric filter having odd number of coefficient may have a performance as

The star equivalent C₁ C₂, C₃ of the delta network is respectively

For real values of x, the minimum value of the function f(x) exp (x) + exp (- x) is

Assertion (A): Conductors do not permit propagation of waves more than a short distance into the conductor at microwave frequencies.

Reason (R): The relaxation time constant for conductors is much small than the period of centimetric EM wave.

The star equivalent C₁ C₂, C₃ of the delta network is respectively

For real values of x, the minimum value of the function f(x) exp (x) + exp (- x) is

Assertion (A): Conductors do not permit propagation of waves more than a short distance into the conductor at microwave frequencies.

Reason (R): The relaxation time constant for conductors is much small than the period of centimetric EM wave.

An antisymmetric filter having odd number of coefficient may have a performance as

The value of the integral is

The star equivalent C₁ C₂, C₃ of the delta network is respectively

The value of the integral is

A material has conductivity of 10⁵ mho/m and permeability of 4p x 10^-7 H/m. The skin depth at 9 GHz is

If a signal f(t) has energy E, the energy of the signal f(2t) is equal to __________ .

A tachometer has a sensitivity of 4 V/rpm. Express the gain constant of the tachometer in the units volts/(rad/sec).

For a npn BJT transistor f_β is 1.x 10⁸ Hz. C_μ = 10^-14 F; C_p = 4 x 10^-13 F and DC current gain isFind f_T and g_m (f_β = cut off frequency, C_μ = capacitance, C_p = parasitic capacitance, g_m = transconductance, f_T = gain BW product)

The impulse response h(t) of a linear time-invariant continuous time system is described by h(t) = exp (at) u(t) + exp (βt) u (- t), where u(t) denotes the unit step function, and a and β are constants. This system is stable if