Question

When current in a circuit is too high, it is usually the result of too many loads or a __________?

1) short circuit
2) low voltage
3) open circuit
4) high resistance

Answer 1

A short circuit is an undesired low-resistance path across a voltage source. When the current in a circuit is too high, it is usually the result of too many loads or a short circuit.

Step-by-step explanation:

A short circuit is an undesired low-resistance path across a voltage source. When the current in a circuit is too high, it is usually the result of too many loads or a short circuit. A short circuit occurs when the insulation on wires leading to an appliance has worn through, allowing the two wires to come into contact. Since the resistance of the short circuit is very small, the power dissipated in the short is very large, which can lead to thermal power that may melt or burn materials.