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a. The resistance of a copper wire is 0.92 Ω at 4°C. At what temperature (°C) will it be 1.06 Ω?
b. At what temperature will it be 0.15 Ω?
The particle moves through one-quarter of a circle in a time of2.30E-3 s, at which time it leaves the field heading due south. All during the motion the particle moves perpendicular to the magnetic field. What is the magnitude of the magnetic force..
Given y[n]=x[n]+y[n-1]+y[n-2] find the unit-step response of this system using the transfer function method, assuming zero initial conditions.
Find the current, the power and the power factor when it is supplied by 50V, 50Hz supply.- What are the values of R and L in the circuit?
Find the time averaged output power of the generator in this circuit.
What is its final angle
Neglecting losses, determine the power that can be developedfrom Niagara Falls, which has an average height of 168 ft and over which the water flows at 500,000 tons per minute.
Suppose a uniform magnetic field exists ina finite regionof space. Can a charged particle be injected into this region from the outside and remain trapped in the region by magnetic force alone
Assuming that only integer multiples of a unit bipolar transistor having IS = 3 x 10-16A can be placed in parallel, and only a single voltage source, VB, is available (Fig. 4.54), construct the required circuit with minimum number of unit transist..
Calculate the minimum PWM frequency for a small permanent magnet DC motor with a time constant of 15 milliseconds.
a 10uF capacitor is plugged into a 110v rms 60 hz voltage source with an ammeter in series. what is the rms value of the current through the capacitor?
The ALU required for this lab accepts two 4-bit inputs (A0 - A3, B0 - B3), a 3-bit function selection code (F0 - F2) and outputs a 5-bit result (S0 - S4). Since the function selection uses 3-bits, there are 8 different functions.
A rectangular pulse v(t) has a magnitude of 1.0 volts and duration 5 μs. The pulse is multiplied by a sine wave x(t) at a frequency of 2.0 MHz. a. Write down an expression for the spectrum of the signal y(t) = x(t) x v(t).
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