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Question - An iron cored transformer is working at a maximum flux density of 0.8 Wb/m2. Its core is replaced by silicon steel core working at a maximum flux density of 1.2 Wb/m2. If the total flux is to remain the same what is the reduction in volume expressed as a percentage of original volume? The frequency and voltage per turn are the same in both the cases.
in any triangle the sum of the measures of the angles is 180deg. in a triangle abc angle a is four times as large as
Skewed left. Sketch a histogram for a distribution that is skewed to the left. Suppose that you and your friends emptied your pockets of coins and recorded the year marked on each coin. The distribution of dates would be skewed to the left. Explai..
Suppose that an electron in hydrogen has been excited to the n=6 orbit. What wavelength of light would be emitted
a rocket blasts off from rest and attains a speed of 49 m/s in 14 s. What is the astronaut's apparent weight during take off
A thin, square, conducting plate 42.0 cm on a side lies in the xy plane. A total charge of 4.20 10-8 C is placed on the plate. You may assume the charge density is uniform. (a) Find the charge density on each face of the plate. C/m2 (b) Find the elec..
What is the momentum in kilograms times meters per second of the 90.0 kg hunter running at 7.50 m/s after missing the elephant? kg · m/s
An implausible number? Newsweek once said in a story that a woman who is not currently married at age 40 has a better chance of being killed by a terrorist than of getting married. Do you think this is plausible? What kind of data would help you c..
An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. what is the mass of this canister
Kids at a swimming hole swing over the water on a tire swing (essentially a simple pendulum) and then drop in the water. How long will it take the empty tire to return for the next kid
A pi meson of mass mπ move with speed uin the positive y direction in frame S with parametersβu = u/c and γu = (1 - βu2)-1/2. Compute the combined energy of the two photons in S'
A second electron directly below it exerts an electrostatic force on the first electron that exactly cancels the gravitational force. What is the distance between the two electron
When a turntable rotating at 33 1/3 rev/min is shut off, it comes to rest in 23 s. Assume constant angular acceleration. Find the average angular velocity of the turntable
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