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An automobile battery is charged with a constant current of 2 A for five hours. The terminal voltage of the battery is v = 11 + 0.5t V for t > 0, where t is in hours. (a) Find the energy delivered to the battery during the five hours. (b) If electric energy costs 15 cents/kWh, find the cost of charging the battery for five hours.
a low pass filter has a cut-off frequency of 8 khz and a high pass filter has a cut-off frequency of 5 khz. these two
A transmitter operates with a carrier frequency of 2.0 MHz. It is amplitude modulated by two tones with frequencies of 1300 and 2300Hz. What frequencies are present in the output signal
A 40 kHz sinusoidal voltage has zero phase angle and a maximum amplitude of 2.5 mV. When this voltage is applied across the terminals of a capacitor, the resulting steady-state current has a maximum amplitude of 125.67
Determine the voltage required on the input of the amplifier to give the maximum output of 85 dBuV. If the signal level from the aerial is 5 dBmV and the input noise level is 20 dBuV, calculate the signal-to-noise ratio on the output of the amplifi..
Assume there are five numbers stored in locations 20 to 24. Write a machine language program to add these numbers and store the result in location 25.
Determine the transfer function for a first order low pass filter with a cutoff frequency of 1000 radians/sec (note radians and not Hertz) and a pass band gain of 1 using the following types. (a) Butterworth type
Assume that the I bit for external hardware interrupt IRQ is enabled and is low-level triggered. Explain how this interrupt works when it is activated. How can we make sure that a single interrupt is not interpreted as multiple interrupts
A 64k x 16 memory uses coincident decoding by splitting theinternal decoder into X-selection and Y-selection. (a) What is the size of each decoder, and how many AND gates arerequired for decoding the address
Consider a finite state machine that generates z = 1 when the previous four values of input variable 'w' are either '1001' or '1101'. Solve this problem by Mealy and by Moore. Show the state diagrams and the state tables.
Determine the transfer function of the second-order (2 poles) lowpass Butterworth filter with a 3 -dB cutoff frequency of 5 kHz. Design it using the Sallen-key Lowpass filter configuration, find all the values of the circuit element
Using VHDL, define a module called "mux 4 to 1" which implements a (4:1) multiplexer. The module should take in 4 data inputs called D3, D2, D1, and D0, and two select inputs called S1 and S0. It should have a single output called Y.
A 100 kVA 2000/400 V, 50 Hz single-phase transformer gave the following test results. With 2000 V applied to the primary with the secondary on open circuit: current 2 A, power 1400 W With the secondary short-circuited and 112 V applied to the primary..
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