How inductors work

The video uses a water circuit analogy to explain electrical circuits, focusing on components like resistors and inductors. It describes how water flow through pipes is similar to electron flow in wires, with a pump representing a battery. The analogy extends to show how a water wheel acts like an inductor, initially resisting flow but eventually allowing it. The video also covers how inductors store energy in magnetic fields and respond to changes in current, creating back EMF. The explanation is detailed with animations to aid understanding.

In the water flow analogy, what does the pump represent in an electrical circuit?

• A resistor

• A battery

• An inductor

• A capacitor

What does the reducer in the pipe symbolize in the context of an electrical circuit?

• Voltage

• Resistance

• Capacitance

• Inductance

In the analogy, why does the water initially avoid the path with the water wheel?

• The water wheel is too fast

• The water wheel is too light

• The water wheel adds too much resistance

• The water wheel is broken

What happens to the water flow when the water wheel reaches its maximum speed?

• It stops completely

• It flows through the reducer

• It flows through the water wheel

• It flows back to the pump

When an inductor is connected in parallel with a lamp, what happens to the lamp as the inductor's resistance decreases?

• The lamp gets brighter

• The lamp turns off

• The lamp flickers

• The lamp explodes

What is the role of the magnetic field in an inductor when the power is cut?

• It dissipates energy

• It creates a new circuit

• It stores energy

• It converts into electrical energy

How does an inductor respond to an increase in current?

• It increases the resistance

• It decreases the voltage

• It creates an opposing force

• It accelerates the current