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A single-phase diode bridge is supplied by an ac source of 257 V, 60 Hz. This bridge in turn supplies a dc load of Idc= 60 A.
Estimate the voltage drops due to (1) source with an inductance of 0.02 mH, (2) each diode with forward voltage drop of ΔVf = 0.6 + 0.0015 Idc, and (3) source and wiring resistances of Rr = 0.0015 Ω.
Draw an equivalent circuit to represent such rectifier.
Research the circuit topologies for implementing HVDC in order to connect multiple offshore wind turbines or multiple tidal generators to the grid with an underwater cable.
Hot chocolate effect. Tap a metal spoon inside a mug of water and note the frequency fi you hear. Then add a spoonful of powder (say, chocolate mix or instant coffee) and tap again as you stir the powder. The frequency you hear has a lower value f..
calculate the capacitance of a planet assuming it is a spherical capacitor of radius r 9550.0 km with charge
Young David who slew Goliath experimented with slings before tackling the giant. He found that he could revolve a sling of length 0.650 m at the rate of 9.00 rev/s. What is the speed of the stone for each rate of rotation
small metal bead, labeled A, has a charge of 26 . It is touched to metal bead B, initially neutral, then that the two beads share the 26 charge, but not required equally. When the two beads are then placed 5.0 apart, force between them is 5.4×10-..
Four identical charges (+3.0µ C each) are brought from infinity and fixed to a straight line. Determine the electric potential energy of this group
What happens to rechargable batteries in the process of recharging? What are some experiments you can do to test how batteries work?
an airport has runways only 161 m long. a small plane must reach a ground speed of 40 ms before it can become airborne.
A ball on the end of a string is revolved at a uniform rate in a vertical circle of radius 72.0 centimeter. find the tension in the string when the ball is at the top of its path
An object is solid throughout. When the object is totally submerged in ethyl alcohol, its apparent weight is 15.3 N. When totally submerged in water, its apparent weight is 13.6 N. What is the volume of the object?
A plank 2.00 cm thick and 16.9 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board extends 2.00 m horizontally over the sea below, find the shear modulus of the wood
A lightbulb requires a current of 0.59 A to emit a normal amount of light. If the light is left on for 2.0 h, how many electrons pass through the bulb?
A 25 gramme bullet traveling at 197 m/s buries itself in a 6.57 kg pendulum hanging on a 2.56m length on string, which makes the pendulum swing upward in an arc. Determine the horizontal component of the displacement of the pendulum.
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