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Q. What is a fuse wire?
i) Fuse wire is an alloy of lead 37% as well as tin 63%. It is linked in series in an electric circuit.
ii) It has high resistance as well as low melting point.
iii) When large current flows by a circuit due to short circuiting the fuse wire melts due to heating and hence the circuit becomes open. The electric appliances are put away from damage.
what is electronic polarization?
Explain electrical conductivity of a conductor and give its S.I. unit. Write S.I. unit of magnetic flux. Is it a vector or a scalar quantity?
Described below is a positively charged particle in a uniform rightward-directed electric field. The particle has a velocity focussed toward the top of the screen. Which of the pat
This is the virtue of a material resists flow of electric current. It should be as high as possible. When material is subjected to an electrical pressure then will always be a flow
What do you mean by dead time in GM counter? Draw a neat diagram at GM counter and explain its working. Mention some of its applications. Give basic principle of Geiger-Muller coun
examples of unlike parallel forces
state the conditions under which two forces form a couple and give an example of couple
when a body is thrown upwards, its velocity becomes zero at the highest point. what will be its acceleration at this point?
Josephson effects (B.D. Josephson; 1962) Electrical effects observed while two superconducting materials are separated through a thin layer of insulating material.
An electric bulb is rated 220 V and 100 W.When it is operated on 110 V, the power consumed will be. Ans) P=V*I I will be same in both cases so P1=V1*I P2=V2*I Dividing both equati
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