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Q1. A power supply passing through a resistor is supposed to deliver 22-v DC at a max current of 150mA. The transformer's peak output voltage is appropriate to charge a capacitor to a full 22V, and the primary is supplied with 60-Hz AC. What value of capacitance will ensure that an output voltage stays within 3% of the rated 22v?
Q2. The parallel metal plate of a capacitor is detached by a distance of 0.5cm and is connected to a 90v battery. Find the electric field between them and surface charge density on the plate.
A 258-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.980, and the log has ..
A ball of mass 0.640 kg moving east (+x direction) with a speed of 3.50 m/s collides head-on with a 0.84 kg ball at rest. If the collision is perfectly elastic, what will be the speed and direction of each ball after the collision?
One of Einstein's postulates says that nothing travels faster than the speed of light in a vacuum, c, what limit does this place on the numerical value for n
Practical steam engines utilize 450°C steam, which is later exhausted at 250°C. What is the overall efficiency of the two engines
What is magnitude of the linear acceleration of the hoop . Elucidate using Newton's Second Law of Motion, why you can throw a golf ball further than a bowling ball, still though you throw both at the similar angle and with the same amount of force.
An AC generator is to have a maximum output of 318 V. Each coil has an area of 0.145 m2 and a resistance of 15.7 ?, Find the maximum current induced in the coil
A grating with 504 lines/mm is illuminated with light of wavelength 305 nm. What is an angular separation between the two lines formed in order m = 2.
A uniform electric field of magnitude 2500N/C makes an angle of 27 degrees with a plane surface of area 0.355 m2. what is the net charge inside the box
A string %uFB01xed %uFB01xed at both ends is 1 m long. It resonates in its second harmonic at a frequency of 55 Hz. What is the speed of transverse waves on the string
Seismographs measure the arrival times of earthquakes with a precision of 0.100 s.7 To get the distance between to the epicenter of the quake, they compare the arrival times of S- and P-waves, which travel at different speeds.
water flows between two parallel plates separated by a distance of h. there is a pressure gradient along x which is constant, find the pressure gradient
A crane at a construction site lifts a concrete block with a mass of 440 kg from the ground to the top of a building with a height of 15.0 m
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