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What is the net force exerted by these two charges on a third charge q_3 = 46.5 nC placed between q_1 and q_2 at x_3 = -1.210 m? Your answer may be positive or negative, depending on the direction of the force.
1) Modern technology has produced a small 1.5-volt alkaline battery with a nominal stored energy of 150 joules. For how many days will it power a calulator that draws a 2-mA current 2)The current entering the positive terminal of an element is
First do this problem for a 5x5 board and the point charge on the center square. Next do it for a 7x7 square and the point charge on the center square. Write a computer program for 101x101 board. derive a general expression for an infinite chessboa..
A 208-V Y connected three phase synchronous motor has a synchronous reactance of 4O per phase and negligible armature winding resistance. At a certain load the motor take 7.2kW at 0.8 pf lagging.
The serial ports on two computers which use binary signaling are connected by a twisted pair cable. The cable has a flat frequency response up to 120KHz, with negligible group delay distortion. That is, the bandwidth of the cable is 120KHz.
the electric field srength E due to an infinite line of chargeis given by E = λ/(2πrεo), where λ is the charge per unit length and r is the radial distance from the wire. a, show that this formular for E still has the units of N/C.
Design a simple circuit diagram,to complete the following task.1)Green lamp light up when the system is ON. 2)Once the pushbutton is pressed, Green Lamp turns OFF and Red Lamp turns ON,Motor starts to spin.3) Once the sensor detect the motor rotat..
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.
Digital voltmeters often have a choice of ranges. The ranges indicated on a typical voltmeter are 0-3, 0-30, 0-300, and 0-3000AC volts. The output is represented with four significant digits. Determine the resolution uncertainty for each range.
A 10-V source is connected across a 10-?F capacitor. In 0.5 seconds after the source is removed, the capacitor voltage has decayed to 1.35 Volts. Derive and label a circuit model for this capacitor.
he armature at the other end of thecommutator is tapped and connected to balanced 3-Phase voltages, sothat a rotating field is produced, The speed of this rotating fieldis 3000 r.p.m. (1) clockwise and (2) anticlockwise,.Find thefrequency of the b..
Design a sequential circuit with input x and output Z. The circuit outputs 1 whenever the input "1100" arrives. For example, the following sequence Z is generated as a result of the following input x
a baseband digital communication system that sends plusmn a valued rectangular pulses through a channel at a rate of
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