Multiple problems could contribute but I would need more details such as does it turn off on it's own or when you turn it off the needle jumps then the car stops running.
The device that turns a needle in a galvanometer is called a coil or a solenoid. It generates a magnetic field when current passes through it, causing the needle to deflect in response to the current being measured.
The device that turns a needle in a galvanometer is called a coil. The coil generates a magnetic field when current flows through it, which interacts with the magnetic field produced by the permanent magnet in the galvanometer to cause the needle to deflect.
Efficiency drops with added turns. Maximum efficiency is about 80% with a 3-4 turn helical and drops to about 60% at 12 turns.
Deflection of the magnetic needle placed in a coil carrying current increases as the number of turns in the coil increase because as the number of turns in the coil increases the strength of the magnetic field also increases.
It turns into ice.
Condensation
No. Only if the wound turns septic, but that is not the hawthorns fault.
I Believe It Is Called The Axis :P
condensation
A compass contains a needle which shows the holder north and south when the needle turns. A compass contains a lightweight magnet and fricitionless bearing to connect with the earths magnetic field otherwise the needle cannot be turned.
I just spent the last 3 days trying to find out. It turns out, it actually goes 'It's a crazy, crazy, crazy, crazy NIGHT!' and it's by Kiss. You can sleep easy now. xxx
John Malkovich plays the super paranoid character who turns out not to be so crazy after all.