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measure a voltage between two points on the human body. We can model the human body as a voltage source in series with a high resistance, let's say 10mV in series with 100kOhms. If we use an instrument with 1MOhm input resistance, what voltage value will we measure?
A capacitor is made with very large plates separated a distance d. The potential between the plates is V=1000 volts and d = 1mm. a) Calculate the pressure the plates exert on the air between the plates.
Design the electrical system for a shopping center with 500,000 square feet at least 30 spaces of three different sizes (5,000, 10,000 and 25,000 sf). They may be offices, banks, restaurants and shops.
What are the positive and negative implications of wireless energy?
Calculate the S/N ratio for a receiver output of 4 V signal and 0.48 V noise both as a ratio and in decibel form. (69.44, 18.42dB)
A 460-V, four-pole, 75-hp, 60-Hz, Y connected, three phase induction motor develops its full load induced torque at 1.2 percent slip when operating at 60 Hz and 460 V. The per phase circuit model impedances of the motor are
Find the phasors corresponding to the following signals. (a) v(t) = 21 cos(4t-15o) V (b) i(t) =-8 sin(10t+70o) mA 2 (c) v(t) = 120 sin (10t -50o ) V (d) i(t) = -60cos(30t +10o) mA
A clock signal is connected to input A, i.e G(ate) input of the transistor. When the signal is high "1" the transistor is on. When the signal is low "0" the transistor is off. What is the minimum voltage the clock signal must have in the high state..
A firm leases land from you for 15 years to build a warehouse. As payment you will own the building after 15 years estimated to be worth $400k however you must pay taxes and maintenance of $15k per year.
Resistance of Headlights, A 24-volt automotive battery is connected to two headlights, such that the two loads are in parallel
An AISI 4140 OQT 1000 sleeve is to be secured to a 2.50-inch diameter solid rod ot the same material employing a class FN1 force fit. The outside diameter of the sleeve is 5.00 inches.
The furniture store manager rarely finances purchases, but will for Terry "as a special favor." The rate will be 10% per year, and because the desk costs $600, the interest will come to $60 for a one-year loan. Thus, the total price is $660, and T..
The capacitor in an RC circuit (R=10.0k Ohms and C=25.0uF) is initially uncharged. Determine the charge and current flowing in the circuit at 0.40 time constants (t=0.40 tau) after the circuit is connected to a 9.00 V battery.
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