Physics

Physics, 26.07.2019 23:30, keke1871

Consider a point source current lo j 12,57 ma at coordinates (0,0,0) in a medium with conductivity o 0.1 s/cm. what is the voltage difference between two points at distance 1cm and 10 cm from the origin along the x-axis?

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Physics, 24.06.2019 20:50, heroxtree

You have a 210-? resistor and a 0.410-h inductor. suppose you take the resistor and inductor and make a series circuit with a voltage source that has a voltage amplitude of 31.0v and an angular frequency of 260rad/s . a) what is the impedance of the circuit? b)what is the current amplitude? c) what is the voltage amplitude across the resistor? d)what is the voltage amplitudes across the inductor? e)what is the phase angle ? of the source voltage with respect to the current? f)does the source voltage lag or lead the current? g)construct the phasor diagram.draw the force vectors with their tails at the dot.

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Physics, 25.06.2019 10:10, anonymous654

Kirchhoff's loop rule says that the sum of the potential changes around a loop must equal zero. therefore, if the input voltage at some moment is 10v, then the voltage drop across the diode plus the voltage drop across the resistor must equal 10v. in general, this gives the equation ir+vd=vin, where i is the current through the diode and resistor, r is the resistance of the resistor, vd is the voltage drop across the diode, and vin is the potential difference of the source. (note that the current through the diode is the same as the current through the resistor because the circuit shown has only one loop.) if you plug in the current-voltage relationship for a diode given in the problem introduction, you will get an equation for vd in terms of r. unfortuately, this is a transcendental equation, which must be solved numerically. for parts b - d, assume that the input voltage is 10 v, the resistance is 1.000kω, and the potential difference across the diode is only 0.3561v. part b what is the current i that flows through the diode? express your answer in amperes to three significant figure. i i i = nothing a

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Physics, 29.06.2019 12:30, dewayne16641

You have a 200-ohm resistor, a 0.400-h inductor, and a 6.00-muf capacitor. suppose you lake the resistor and inductor and make a series circuit with a voltage source that has voltage amplitude 30.0 v and an angular frequency of 250 rad/s. (a) what is the impedance of the circuit? (b) what is the current amplitude? (e) what are the voltage amplitudes across the resistor and across the inductor? (d) what is the phase angle of the source voltage with respect to the current? does the source voltage lag or lead the current? (e) construct the phasor diagram.

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Physics, 23.07.2019 06:10, alexis1246

You are given two resistors, an ammeter, a voltmeter, and a voltage source. by connecting each resistor singly to the voltage source and taking voltage difference and current measurements on the single resistor, you find the following data for each resistor: resistor voltage (v) current (ma) 1 3.88 43.6 2 4.48 14.45 using this data, first find the resistance of each resistor and then calculate the following: (a) the current that would pass through the network of resistors if they were arranged in series and connected to an 7.65 v voltage source. iseries = (b) the current through the circuit if the resistors were arranged in parallel and connected to the same 7.65 v source from part (a).iparallel =

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