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Uses of Ultrasonics:
1. Ultrasonic are used in diagnosis of disease, physical therapy as surgical tool & industry.
2. They are used in sounding devices to calculate the depth of a sea.
3. They are used to get cross sectional pictures of patient in hospitals.
a) A uniform mild steel ring has a diameter of 50mm and a cross-sectional area of 1cm 2 . Determine the mmf essential to produce a flux of 50µWb in the ring. (b) I
DIMENSION of Newton DIMENSION ? The dimension of force is [MLT -2 ]
Solar Cells: The solar cells that we see on calculators and satellites are photovoltaic cells or modules (modules are easily a group of cells electrically connected and packaged
Energy is transferred in a one direction only. Example : Wave propagating in a stretched string.
A galvanometer with a coil of resistance 120 ohm shows full scale deflection for a current of 2.5 mA. How will you change the galvanometer into an ammeter of range 0 to 7.5 A? Veri
#theory of tangent galvanometer
A 4μF capacitor is connected in parallel with a 6μF capacitor. This arrangement is then linked in series with a 10μF capacitor. A supply p.d. of 250V is linked across the circ
Consider charge of consistent surface density (charge-per-area) everywhere on an infinite horizontal plane. In computing the electric field due to such a charge distribution one ca
(i) A matter pulse is not electromagnetic in behavior. (ii) Practical observation of matter waves is possible only when the de-Broglie wavelength is of the order of the size of
Given below are two electric circuits A and B Measure the ratio of power factor of the circuit B to the power factor of circuit A.
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