Consider the following statements

1. Constantan wire is used in making standard resistance because its temperature co-efficient of resistance is negligible.

2. Thermocouple thermometer is based on Peltier effect.

3. Potentiometer measures potential more accurately because it measures potential in the open circuit.

4. In an electrolysis, the amount of mass deposited or liberated at an electrode is directly proportional to amount of charge.

Which of the statements given above are correct?

Consider the following statements

1. In a charged capacitor, the energy is stored in the electric field between the plates.

2. The dielectric constant of metals is infinite.

3. The field intensity on the surface of a charged conductor is directed normally to the surface.

4. Kirchhoff's voltage law is based on the law of conservation of energy.

Which of the statements given above are correct?

Consider the following statements

1. An atom bomb is based upon the principle of nuclear fission.

2. Hydrogen bomb is based upon the principle of nuclear fusion.

3. Nuclear reactor is based upon the principle of controlled nuclear fission.

Which of the statement(s) given above is/are correct?