Linear and Non linear

The video explains the IV characteristics of linear and non-linear circuit elements. It covers Ohm's law, the behavior of ohmic conductors like resistors, and how to deduce IV characteristics using apparatus. It also discusses non-ohmic conductors such as filament bulbs and diodes, highlighting their unique properties and behaviors.

What is the relationship between current and voltage in an ohmic conductor?

• They are inversely proportional.

• They are directly proportional.

• They are exponentially related.

• They are unrelated.

What is the purpose of using a voltmeter with infinite resistance in an experiment?

• To reduce the circuit's overall resistance.

• To measure the current directly.

• To ensure no current flows through it.

• To allow maximum current flow through it.

Why does a filament bulb not follow Ohm's law?

• Because its resistance increases with temperature.

• Because it has a constant resistance.

• Because its resistance decreases with temperature.

• Because it allows current to flow in one direction only.

What happens to a diode when the voltage is applied in the reverse direction?

• It increases the current flow.

• It decreases the voltage.

• It allows current to flow.

• It blocks current flow.

In the positive direction, how does the IV graph of a diode behave after a certain potential difference is reached?

• It shows a steep diagonal line upwards.

• It remains flat.

• It becomes a horizontal line.

• It curves downwards.