It depends on the type of sparking/arcing. If you mean in a DC or series-wound motor, it is caused by the making and breaking of the commutator segments against the motor brushes.
If you mean under a car, then it could mean that the muffler is dragging the ground.
If you mean in a CRT television, then it is likely problems with the flyback transformer.
It has static charges. Or it may be combustible, that's why it spark and went to flame.
brush friction, poor ventillation, excessive sparking caused by high voltage
A huge sparking on the pole can make an electricity meter run fast if it causes a surge in electrical current. The meter monitors the amount of electricity flowing into the home which is regulated by items in the home itself.
If you get sparking in an electrical switch there is a loose connection or short in the circuit. The switch should be repaired or replaced.
The flint.
The cast of Sparking the Flame - 2010 includes: Matt Christian Reed as Henry
It means to connect with someone you like and love them.
Good. They are not supposed to.
non sparking
The buzzer work with a magnetic coil that attractes the armature thus interrupting the current. This happens repeatedly to cause the buzz. When the current is interrupted the action of the coil produces a voltage that tries to maintain the current, and that causes a spark between the switch contacts.
The explosives in the diamond mine are just to the left of the elevator. Turn off the elevator switch that's sparking, then push the explosives to the right. You turn the sparking switch back on to detonate it.To use the explosives:Turn off the sparking wire from the elevator switch.Slide a barrel of explosives over to the right, and put it next to the rock.Turn the switch back on, sparking the explosive, which explodes the rock.Turn the sparking wire off, and repeat the process to blast the wall.
W. R. Debenham has written: 'On the erosion of sparking plug electrode materials and the variation of sparking plug voltage'