Short Circuit

At home, you noticed that a portion of an electrical wire is worn out, exposing its metallic part. What do you think might happen if you will just ignore this problem?

• short circuit may happen

• circuit is of better condition

• overloading may not happen

• nothing happens when someone touches the wire

What is a short circuit?

• A connection that allows current to travel along an unintended path

• A circuit with a high resistance

• A circuit with no current flow

• A circuit with a broken wire

Which of the following is a common cause of a short circuit?

• Insulation failure

• Proper wiring

• Low voltage

• High resistance

What can happen if a short circuit occurs in a household appliance?

• The appliance may overheat and cause a fire

• The appliance will work more efficiently

• The appliance will consume less power

• The appliance will become waterproof

How can a short circuit be prevented in electrical systems?

• Using proper insulation

• Using thinner wires

• Increasing the voltage

• Decreasing the current

What device is commonly used to protect circuits from short circuits?

• Circuit breaker

• Resistor

• Capacitor

• Transformer

In a short circuit, what happens to the current flow?

• It increases significantly

• It decreases significantly

• It remains the same

• It stops completely

What is the role of a fuse in preventing short circuits?

• To break the circuit when excessive current flows

• To increase the current flow

• To decrease the voltage

• To store electrical energy

Which material is least likely to cause a short circuit?

• Rubber

• Copper

• Aluminum

• Iron

What is the potential danger of a short circuit in a car's electrical system?

• It can cause a fire

• It will improve fuel efficiency

• It will enhance battery life

• It will increase engine power

Tags

NGSS.MS-PS3-3