You would no doubt find one of the lead wires loose in binding post.
At each corner of one end fix a binding post, as at A, A', Fig. 37.
This carbon is composed of two parts, a hollow-fluted lower piece and a threaded top, which carries the binding post.
Suppose the current to enter at the binding post a, pass around the magnets b and then to the post c.
A binding post, E, passed through the block, its head being buried in the graphite at the bottom of the cavity.
While the boat was running one of the boys noticed that a binding post at the end of one of the spark plugs seemed to be loose.
A wire ran from the central (carbon) binding post of one cell to the marginal (zinc) binding post of the next cell.
If we rub the end of the wire c across the binding post under b (Fig. 117) no spark occurs.
There was a binding post on it to which a wire could be connected.
In Fig. 126 e represents the binding post from which the shock was received.