126. Four signals
m1 = cos (ω0t), m2(t) = cos (ω0t), m3(t) = 2 cos (ω0t) and m4(t) = cos (4 ω0t) are multiplexed by Time Division Multiplexing system. The commutator speed in rps is
127. The feedback control system shown in figure is stable for what values of K and T?
128. Which of the following materials is used for making coils of resistance box?
129. Find the value of ix if each resistance is of 3 Ω and each battery is of 6 V.
130. Find RTH
131. If then for this to be true x(t) is __________ .
132. The dual transform of the given network as
133. A λ/4 long high frequency transmission line is terminated into one impedance ZR. If Z0 be the characteristic impedance of the line, then input impedance Zin is
134. Find the power absorbed or delivered by each source:
135. The function shown in figure, can represent a probability density function for A __________
136. If the transfer function of the following network is
The value of the load resistance RL is
137. A bipolar differential amplifier uses a transistor having β0 = 200, ICQ = 100 mA, |Adm| = 500 and CMRR = 80 dB. The value of Rc and RE will be respectively __________ .
138. Which of the following regions did not form the part of Ashoka’s empire?
139. A 300 MHz plane EM wave is propagating in free space. The wave is incident normally on an infinite copper slap. The antenuation constant for the wave is (σcopper = 5.8 x 107 mho/ m). The skin depth is
140. Following figure represents
141. For parallel RLC circuit, which one of the following statements is NOT correct?
142. The practical resonant circuit is shown in above figure. Find the expression for the resonant frequency ωo
143. A ramp input applied to a unity feedback system results in 5% steady state error. The type number and zero frequency gain of the system are respectively.
144. Fill up the blanks using suitable choice: He preferred cricket ......... any other sport.?
145. The equation sin (z) = 10 has
146. Given If , then the value of K is
147. Consider the Schmitt trigger circuit shown below. A triangular wave which goes from - 12 V to 12 V is applied to the inverting input of the op-amp. Assume that the output of the op-amp moves from +15 V to -15 V. The voltage at the non-inverting switches between
148. i1(t) for t > 0 is given by
149. Find I in 4 Ω resistor.
150. Which of the following Boolean Expression correctly represents the relation between P, Q, R and M1?