The more rapidly a bar magnet (or other source of magnetic field) approaches a conducting wire loop, the A: greater the current induced in the coil. B: lower the current induced in the coil. C: greater the resistance of the coil. D: lower the resistance of the coil.

ignition coil

coil tube with fins

Fig 1 – 3 shows how it is that a coil of wire(导线圈)induces(感应) a current in another coil when the current in it is turned on or off.

图中所示元件名称? A: Contactor B: relay C: Fuses D: coil

A basic ignition system consists of the _______, low tension coil and cables. A: diplomatic B: battery C: ideology D: territory

The primary role of the distributor is to distribute high voltage from the to the correct cylinder. A: coil B: piston C: Spark plug

There are some general types of disc brake( ). A: fixed caliper B: coil caliper C: rotor caliper D: floating caliper

The primary role of the distributor is to distribute high voltage from the( )to the correct cylinder. A: spark plug B: piston C: coil D: rotor

which are the main form of secondary structure of protein ( ) A: supercoil B: β-pleated sheet C: β-turn D: random coil E: double helix