Ex/14: The metal rod 1 m long rotates about its one end in a plane at right angles to a horizontal magnetic field of induction 3 × 10 + Wb/m². What is the induced e.m.f. between its ends if it rotates with a frequency of 100 r.p.s.
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A: Visualize the problem:
Q: 9) A spring has a constant of 875 N/m. What hanging mass will cause this spring to stretch 4.5 m?
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Q: Ex. 16 The wheel with 10 metallic spokes each of 0.5 m long rotated with a speed of 120 r.p.m. in a…
A: To find-Induced emf (e)=?Given-(B)=3.5×105 wb/m2No. of revolutions per minute (n)=120r.p.s…
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Q: The co-efficient of reflection of an opaque body is 0.16. Its co-efficient of emission is - (a) (c)…
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Q: A star is observed at a distance of 90 pc. What will be its parallax angle?
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Q: :) The scolor electric potential in empty space is given E V= x²y (2+3). (v) find I and Pu₂? as
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Q: Ex 48 At what temperature will helium molecules have the same R.M.S. velocity as that of hydrogen at…
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A: To find-Magnetic induction (B)=?Given-A=1 m2I=10 Ax=10 m
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Q: Calculate energy of the electron in the fifth Bohr orbit of H-atom.
A: To find-Energy of electron in 5th orbitGiven-n=5
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A: Given: The resistance of the silver wire at 25°C is 3.00 Ω. The temperature coefficient…
Q: Ex. 4: The radius of 1 Bohr orbit of hydrogen atom is 0.53 A. Calculate of radius of 25th Bohr orbit
A: Given: Radius of first Bohr orbit of hydrogen, r1=0.53 Ao To find: Radius of 25 th Bohr orbit.
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Q: 1. For a one-dimensional fermion gas, calculate the density of energy levels g(e).
A: The answer is explained below with a proper explanation.
Q: urchase a rectangular piece of metal that has dimensions 4.6 mm 5 mm and mass 1.00x102 kg. 17.0 mm ▼…
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Q: An engine removes 391 J from a reservoir at 302 K and exhausts 341 J to a reservoir at 200 K. 1) (a)…
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Q: The steel structure shown in the figure is loaded with 60 kN at point D. All the joints use a…
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Q: You hear a seal produce an alarm call on the beach. Some of this alarm sound will also penetrate…
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Q: What would be the duration of the year if the distance between the earth and the sun gets doubled ?
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Q: 14. (II) Calculate the ratio of the resistance of 10.0 m of alu- minum wire 2.2 mm in diameter, to…
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Q: Q6: Find the outward flux generated by the field F=zk across the hemisphere x² + y² + z² = 3, z20.…
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Q: A driver traveling north slows down from 35.4m/ s to 0m/s in 8.6 seconds. What is the magnitude of…
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Q: What mass of gold is produced when 25.0 A of current are passed through a gold solution for 36.0 min…
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Q: Calculate threshold wavelength for given surface having threshold frequency 5 x 10¹4 Hz.
A: To find-Threshold wavelength (λ0)=?Given-ϑ0=5×1014 Hzc=3×108 m/s
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