sqrt magnetic constant electric constant

.A copper-constantan thermocouple is used between S 1 and S 2 .When sun's rays fall on S 1 , its temperature rises. The temperature of the junction (of the thermocouple) near S 1 increases. The galvanometer gives deflection. Now, current is passed through S 2 , so that temperature of S 2 becomes eq..

When a long wire is coiled in the shape of a spring so that the turns are closely spaced and insulated from each other it forms a solenoid. Generally, a wire is coiled over a non-conducting hollow cylindrical tube. An iron rod is often inserted inside the hollow tube. This rod is called the core. h..

As we know, the electrostatic field inside the conductor is zero and on the surface, the electrostatic field is normal to the surface at every point. No work is done in moving a small test charge, within the conductor and on its surface. We find there is no potential difference between the two poi..

Magnetic Field Due to a Solenoid - A solenoid is a long coil (shaped like a cylinder) containing a large number of close turns of insulated copper wire. The figure above shows a solenoid SN whose ends are connected to a battery B through a switch X. When a current is passed through a sole..

Pierre Curie experimentally discovered that intensity of magnetization I is directly proportional to B o (flux density in Vacuum) and inversely proportional to the absolute temperature. T of the material That is I a B o /T or I=c B o /T Here, C is Curies constant. The saturation..

Question 1 - Question: Which of the following statements does not represent ohm's law? 1. current / potential difference = constant 2. potential difference / current = constant 3. potential difference = current x resistance 4. current = resistance x potential difference Answer: ..

>A constant voltage of the main line is available for all other electrical appliances. Along with the two wires, a third wire called the earth wire also enters our house as shown in the fig. The earth connection is first made to the electric meter and then to the main ..

In the case of electrochemical cells, free energy change, D G is related to the electrical work done in the cell. If E is the e.m.f of the cell and n mole of electrons are involved, the electrical work done will be D G = -nFE c e l l , where F is Faraday constant..

The total electric charge of an isolated system remains constant..

For a current to flow through a conductor, a difference in charge should be maintained between the two ends of the conductor. To ensure this, a cell or a battery is used. The cell or a battery converts its chemical energy into electrical energy thus maintaining a constant diffe..