Acompass is wrapped in a coil of wire that is connected to a switch and battery. which statement best explains why the compass needle turns when the switch is closed?

- The compass needle turns when the switch is closed as there is no magnetic field.

Explanations:- The compass needle is wrapped in a coil which is connected to a battery and switch. If the switch is on then a magnetic field is generated in the coil that stops the moment of the compass needle.

When the switch is off then no magnetic field is generated in the coil and the compass needle is free to turn.

? you expect us to answer this? ? this is your schoolwork, i don't think we can with this, i think it would considering being

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l