An L-R-C series circuit draws 220 W from a 120-V (rms), 50.0-Hz, ac line. The power factor is 0.560, and the source voltage leads the current, (a) What is the net resistance R of the circuit? (b) Find the capacitance of the series capacitor that will result in a power factor of unity when it is added to the original circuit, (c) What power will then be drawn from the supply line?
An L-R-C series circuit draws 220 W from a 120-V (rms), 50.0-Hz, ac line. The power factor is 0.560, and the source voltage leads the current, (a) What is the net resistance R of the circuit? (b) Find the capacitance of the series capacitor that will result in a power factor of unity when it is added to the original circuit, (c) What power will then be drawn from the supply line?
An L-R-C series circuit draws 220 W from a 120-V (rms), 50.0-Hz, ac line. The power factor is 0.560, and the source voltage leads the current, (a) What is the net resistance R of the circuit? (b) Find the capacitance of the series capacitor that will result in a power factor of unity when it is added to the original circuit, (c) What power will then be drawn from the supply line?
Car A starts from rest at t = 0 and travels along a straight road with a constant acceleration of 6 ft/s^2 until it reaches a speed of 60ft/s. Afterwards it maintains the speed. Also, when t = 0, car B located 6000 ft down the road is traveling towards A at a constant speed of 80 ft/s. Determine the distance traveled by Car A when they pass each other.Write the solution using pen and draw the graph if needed.
In the given circuit the charge on the plates of 1 μF capacitor, when 100 V battery is connected to the terminals
A and B, will be
2 μF
A
1 µF
B
3 µF
The velocity of a particle moves along the x-axis and is given by the equation ds/dt = 40 - 3t^2 m/s. Calculate the acceleration at time t=2 s and t=4 s. Calculate also the total displacement at the given interval. Assume at t=0 s=5m.Write the solution using pen and draw the graph if needed.
Chapter 31 Solutions
University Physics with Modern Physics, Volume 1 (Chs. 1-20) and Mastering Physics with Pearson eText & ValuePack Access Card (14th Edition)
Genetic Analysis: An Integrated Approach (3rd Edition)
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