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Design a circuit to supply a -2.5 reference voltage as the input to a voltage follower if only 9 V batteries are available. Use an In4740 diode, which has a Zener voltage of 10 v at a current of 25 mA.
A black box contains an impedance coil across the two available terminals of the box. The box 20 ampere from a 12-V battery and when it is connected to a 220-v 60 cycle source, it takes 900W.
One of the home satellite services uses a dish antenna having a diameter of 18" (0.457 m) and frequency of 12.45 GHz. If the illumination efficiency is 70%, determine the gain of the antenna in dB
Interpreting frequency domain signal spectrum to time domain, A spectrum analyzer is connected to an unknown signal. The spectrum analyzer displays the voltage level of signals in volts vertically and frequency horizontally.
a) Calculate alpha, omega-sub-delta, and omega-sub-zero. b) write the equation which describes the current i for t>0. c) determine the maximum value of i, and the time at which it occurs, if the inductor initially stores no energy and v(0-)=9V.
According to the Nyquist sampling theorem, faithful reconstruction of an analog signal with a bandwidth of 29 kHz would require a sampling frequency of at least. what is the decimal equivalent of the following binary coded decimal number.
A positron (same mass as electron) moving at .8c collides head on with a stationary electron producing two photons with EQUAL ANGLES relative to the incoming positron. Find the photon energies, wavelengths and angle
suppose that atransmitter sends power into a transmit antenna whose gain is +4bBi. The receiver some distance away receives a powe of -50dBm when operating with a receive antenna whose gain is -3dBi.
A circular polarized wave in air is incident on glass surface. The angle of incidence equals the Brewster angle. Refractive index of glass, n(glass) is 1.35. Find the following quantities: 1) The Brewster angle. 2) The angle of refraction 2.
1. The voltage gain of an 11.2 kHz low-pass filter is -12 dB; what is its numeric gain 2. Two amplifiers are cascaded, one with a voltage gain of 6.02 db and the other with a voltage gain of 12. If 10 mV is measured at the input of the second ampl..
The potential energy of a system of two particles separated by a distance r is given by the equation below, where A is a positive constant. U(r) = (A)/(r^11) Find the radial force vector F that each particle exerts on the other.
An input signal of 10V at 0o and a frequency of 1592 Hz is applied to a parallel RC circuit with resistor R = 100 ohm and capacitor C = 1 F. what is The source current.
Design an operational amplifier cicuit that has the following specifications: Gain=-3; Input impedence>20 kohm You have unlimited number of resistors of values 1,2,5, and 10 kohms and LM741 op amps. Input impedance of LM741 op amp is 3Mohm.
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