When a positively charged conductor connected to the earth, then _____.

Consider the following statements:

$1$. Ohm's law is not applicable at very low temperatures and very high temperatures.

$2$. Ohm's law is applicable to semiconductors.

$3$. Ohm's law is not applicable to electron tubes, discharge tubes, and electrolytes.

$4$. Conductance is the reciprocal of resistance and is measured in Siemens.

Which of the statements given above are correct?

Consider the following statements:

1. A galvanometer is converted into an ammeter when we connect a low resistance in parallel.

2. A galvanometer is converted into a voltmeter when we connect a high resistance in series.

3. The conductivity of the superconductor is infinite.

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

Consider the following statements

1. The resistance of ideal voltmeter is infintie.

2. The resistance of ideal ammeter is zero.

3. Tangent galvanometer is used to measure steady currents.

4. Law of electrolysis is given by Faraday.

Which of the statements given above are correct?

Consider the following statements

1. Au, Ag, Cu, Zn, Sb, Bi, H₂O and air are examples of diamagnetic

2. Na, AI, Mn, CaCl₂ and oxygen are examples of paramagnetic.

3. Fe, Co, Ni and Fe₃O₄ are examples of ferromagnetic.

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