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Q. What is microwave oven? How it works?
Microwave oven It is utilized to cook the food in a short time. When the oven is manage the microwaves are generated which in turn produce a non-uniform oscillating electric field. The water molecules in the food that are the electric dipoles are excited by an oscillating torque. Therefore few bonds in the water molecules are broken and heat energy is produced. This is utilized to cook food.
Centrifugal force with a liquid Get a small goldfish bowl or glass jar. Fasten a wire securely about the neck. To this wire attach a bale. Join the cord from the drill chuck to
A cue ball has a mass of 0.160 kg is at rest on a frictionless pool table. The ball is hit dead center by a pool stick which applies an impulse of +1.40 Ns to the ball. He ball the
An electric dipole of dipole moment 20, X 10 -6 C.m is enclosed by a closed surface. What is the net flux coming out of the surface?
what is newtons law
The signal which has only two values. I.e. either a constant high value of voltage or zero value is known as digital voltage signal
The ratio of specific charge of a proton and an alfa-particle is: (1) 2 : 1 (2) 1 : 2 (3) 1 : 4 (4) 1 : 1 Ans:(1) 2 : 1
Illustrate the characteristics of a sound note. What do you mean by Resonance? Illustrate with an example.
My question is that if voltage is increased, the electrons will move faster and the distance between them is changed. Why?
A car of mass 1.35 x 10 3 kg sits on a large piston that has a surface area of 1.23 m 2 . The large piston is linked to a small piston of area 144 cm 2 . What is the weight
what is gravitional constant? mention its SI value
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