If `q_1 q_2 > 0`, what can one say about the sign of the charge?

What can we say about the current in LCR series resonance?

The two graphs drawn below show the variation electrostatic potential (V) with 1/r (r being distance of the field point from the point charge) for two point charges q_1 and q_2 What are the signs of the two charges?

In figure, the two graphs show the variation of electrostatic potential (V) with 1/r (r being distance of the field point form the point charge) for two point charges q_1 and q_2 What are the signs of the two charges?

The following real numbers have decimal expansions as given below. In each case, decide whether they are rational or not. If they are rational, and of the form p/q , what can you say about the prime factors of q ? :- 0.120120012000120000 .......

If q_1q_2>0 , what is the nature of force between the two charges?

The following real numbers have decimal expansions as given below. In each case, decide whether they are rational or not. If they are rational, and of the form p/q , what can you say about the prime factors of q ? :- 43.123456789 .

The following real numbers have decimal expansions as given below. In each case, decide whether they are rational or not. If they are rational, and of the form p/q , what can you say about the prime factors of q ? :- 43.bar123456789

The following real numbers have decimal expansions as given below. In each case decide whether they are rational or not.If they are rational, and of the form p/q what can you say about the prime factors of q ? : 0.00026 .