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A metal ring stand and rings
A useful ring stand and rings can be made from a flat curtain rod and the fixtures which clamp over electricbulbs to hold lamp shades. These are usually obtainable in hardware stores. The curtain rod is shaped asshown in the diagram.
The curtain rod consists of two pieces fitted to slide together so that they are adjustable for curtains ofdifferent width
Explain Independence of Vectors Quantities Perpendicular vector quantities are independent of one another. This means that the actions of one vector will not affect the action
Explain thew laws of physics It is thought that the laws of physics do not change from place to place. This is why experiments carried out in different countries by dissimilar
Q. Two wires of same material and same length have resistances 5 and 10 respectively. Find the ratio of radii of the two wires. R = ρl / A = ρl / πr 2 R 1 = ρl / A = ρl
When is the combination of cells advantageous and why? (Mar 2009) What do you mean by internal resistance of a cell? Write down the value of internal resistance of an ideal cell
Spark suppression: If we consider a circuit with a large inductance, possibly one using a magnetic relay. At the instant the switch is opened, the current through the coil is
Explain Faraday's laws of electromagnetic induction? Ans. First Law of faraday: Whenever the flux linked with a circuit is changed an e.m.f. is generate in the circuit Seco
What is electrostatic shielding?
There are five types of modulus of elasticity (i) YOUNG'S MODULUS OF ELASTICITY (Y (ii) BULK MODULUS OF ELASTICITY (K) (iii) COMPRESSIBILITY (iv) MODULUS OF RIGIDITY
Refraction of Light: When a ray of light in single medium meets the surface of second medium, a part of the ray enters in the second medium; this phenomenon is called as refrac
Calculate the heat required to melt 316.7kg of potassium metal at 336 K. The enthalpy of fusion of potassium is 2.35 kJ mol -1 .
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