A cube of Diamond with sides s=1.2cm has a voltage V=40V applied to two opposite sides (both sides fully covered in metal). An ammeter tells us there is a current of 0.5 mA. A subsequent Hall Effect measurement with a current of 5 microamps and a magnetic field of 1mT gives us ɛH=3.12E6 V/cm. Find the lifetime of the carriers in the sample.
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- 5. An electron orbiting an atomic nucleus forms its own kind of current loop. For a hydrogen atom in the lowest energy state, a single electron orbits the nucleus with a radius of 52.9 pm (5.29 × 10-11 nm) and a speed of about 2.2 x 106 m/s. X Z (a) Conventional current measures the amount of charge passing a certain point per unit time: I = In this case, Qis the electron charge, and At is the time it takes the electron to complete one full orbit. Using this information, what is the magnitude of the conventional current in the hydrogen atom? Answer: I = 1.05 mA. (b) What is the magnetic field (both magnitude and direction) at a distance of 5.29 nm along the axis of the atom, at the point indicated? Answer: -1.25 × 10-5 T 2Consider the two cylindrical wires of lengths l1=4.5m and 2-3.3m are merged back to back as shown in the figure below to forma single wire. The wires have the radii of r1-3mm and r2= 11mm and the current runs along the lengths of the wires. If the thin and the thick wires resistivities are p1-305x100.m and pz-292x10 Q.m respectively, determine the resistance of the wire. Please express your answer in units of Q using one decimal places.file is attached
- In an experiment measured value of current is 9.06 A and theoretical value of the current 9.88 A. Calculate the % error in the experiment. а. 1.10 % оb. 19.17 % O c. 8.30 % d. 0.09 %The current density in a cylindrical wire of radius 4R is given by = J.(1 -). Density is parallel to the axis. Find the total current passing through the section perpendicular to the axis.Energetic particles, such as protons, can be detected with a silicon detector. When a particle strikes a thin piece of silicon, it creates a large number of free electrons by ionizing silicon atoms. The electrons flow to an electrode on the surface of the detector, and this current is then amplified and detected. In one experiment, each incident proton creates, on average, 34,000 electrons; the electron current is amplified by a factor of 100; and the experimenters record an amplified current of 3.5 μA. How many protons are striking the detector per second?
- I need the answer as soon as possibleYou are given 1.0 [g] of aluminum (mass density = 2700 kg/m3) and asked to make a wire, using all the aluminum, that will dissipate 7.5 [W] when connected to a 1.5 [V] battery. What length and diameter will you choose for your wire?Electrons in conductors can continue to accelerate and rapidly increase indefinitely correct Error If the propagation current is opposite to the drift current, then the resultant current is the sum of the twosteams correct O wrong When the electrons reach the middle of the metal, you can never leave it for any external influence as a result The presence of a voltagebarrier correct O wrong