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Determine about the rod in magnetic coil
the rod is placed in a magnetic coil deliver alternating current, the rod suffers a change within length for each half cycle of alternating current. It is, the rod vibrates along with a frequency twice which of the frequency of A.C. The amplitude of vibration is generally small, but when the frequency of the A.C. coincides along with the natural frequency of the rod, in that case the amplitude of vibration increases because of resonance.
In the device shown in Figure, when the current in the primary coil of 1000 turns increases linearly from 1A to 6A in 200ms, an e.m.f. of 15V is induced into the secondary coil of
The rate of modification of thermo emf with the change in the temperature of the hot junction is known as thermoelectric power.
Explain the Optical Instruments? The lenses you use most often are the ones in your eyes. The front of your eye has a convex lens whose focal length can be changed by the muscl
a balloon is filled with 100 kg of helium, and that the velocity is 2.0 m / s what is the external kinetic energy?
Photon flux
two insulated charge Cu spheres A and B OF IDENTICAL size have charge qa and -3qa when they are brought in contact with each other and separated,what are new charge on them
a. Explain the following terms in connection with electro-magnetic waves: (i) Transverse waves (ii) Power density (iii) Wave impedance (iv) Polarization b. State the chara
explain specific latent heat of fusion with formula
In a young's double slit experiment the screen is 1 meter away from the slit, the separation between the slits is 1mm and the distance between the 1st and 4th fringe is 1.2mm. Find
A pendulum is timed, first for 20 swings and then for 50 swings Time for 20 swings= 17.4s Time for 50 swings= 43.2s Calculate the average time per swing in each case.
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