Question

25. Formula for efective esistance of the ammemter​

Answer 1

Answer:

For a circuit with resistances R1 and R2 in series or in parallel as in Figure 2, the effective resistance can be calculated by using the following rules. Rab = R1 + R2.

Answer 2

Answer:

First the resistors are connected in series as they are joined to ammeter..so the effective resistance will be 12 ohm by adding all resistance and then by om's law V=IR we can find reading of ammeter where V=6.0 and I=? R=12 ohm.