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Electric Circuits
What is the resistance of a copper bus bar 9.15 meter long and 7.62 cm by 1.27
cm in cross section? Use 1.78 μΩ-cm specific resistance for copper.
Electric Circuits
Charles throws a basketball vertically upward at a speed of 5 m/s. The ball reached the maximum height then drops freely. If Charles fail to catch the ball on its way back down, find the height of the bounce of the ball (assume the coefficient of restitution between the ball and ground be 0.6).
Electric Circuits
Find the impedance of a series RLC circuit if the inductive reactance, capacitive
reactance and resistance are 184 Ω, 144 Ω and -j30 Ω respectively. Also calculate the
phase angle between voltage and current
reactance and resistance are 184 Ω, 144 Ω and -j30 Ω respectively. Also calculate the
phase angle between voltage and current
Electric Circuits
two cylindrical conductors connected in parallel, to which a potential difference of V = 170V is applied. The two conductors are made of the same material, but the first is 6 times the length of the second, and 1/5 the radius of the second. The resistance of the second is R₂= 469. Determine the equivalent resistance.
Electric Circuits
- a charge +Q at a distance 2d from a charge -Q and a point X at a distance d from -Q what is the field strength at X numerically using SI units
Electric Circuits
Two practically elastic spheres collide. If their velocities before impact have same magnitude and opposite directions and one has a mass 3 times the other, what are their velocities after impact?
Electric Circuits
Find the input thermal noise voltage of a receiver with a bandwidth of 3.33 kHz, with an input resistance of 42 Ω, and a temperature of 29oC.
Electric Circuits
Consider the battery charging circuit with Vm = 20 V, R = 10 ohms and VB = 14 V. Find the peak current assuming an ideal diode. Also, find the percentage of each cycle in which the diode is in on state. Sketch Vs(t) and i(t) to scale against time.
Electric Circuits
if the voltage is connected to a 5v battery. The ammeter in the circuit reads 2a. What is the value of the resistance?
Electric Circuits
A 3x10^-6 C Negative charge produces a force of 2X10^-2 N at a distance of o.ooo4 m with another unknown charge. What is the magnitude of the unknown charge?
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#339914 on Dec 2023
#339914 on Dec 2023