Electrical Components and Their Behavior

The video tutorial discusses the IV characteristics of linear and non-linear circuit elements. It begins with an explanation of Ohm's Law, which describes the relationship between current, voltage, and resistance in linear components like resistors. The video then explores non-linear components, such as filament bulbs and diodes, highlighting how their resistance changes with temperature and direction of current flow. The tutorial also covers the theoretical and practical aspects of measuring IV characteristics using voltmeters and ammeters.

What does Ohm's Law describe?

• The relationship between energy, current, and resistance

• The relationship between current, voltage, and resistance

• The relationship between voltage, energy, and power

• The relationship between power, voltage, and resistance

Under what condition does a wire act as an ohmic conductor?

• When the resistance is variable

• When the temperature is constant

• When the current is constant

• When the voltage is constant

What is an IV characteristic graph?

• A graph showing the relationship between voltage and power

• A graph showing how current changes with potential difference

• A graph showing how current changes with time

• A graph showing the relationship between power and resistance

Why are voltmeters considered ideal in theory?

• They have high resistance

• They have zero resistance

• They have infinite resistance

• They have low resistance

What happens to the resistance of a filament bulb as it heats up?

• It increases

• It fluctuates

• It remains constant

• It decreases

Why is a filament bulb considered a non-ohmic conductor?

• Because its resistance remains constant

• Because its resistance decreases with temperature

• Because it follows Ohm's Law

• Because its resistance increases with temperature

What is the function of a diode in a circuit?

• To decrease the current

• To allow current to flow in both directions

• To allow current to flow in one direction only

• To increase the voltage

What happens to the current in a diode when the voltage is reversed?

• The current increases

• The current does not flow

• The current decreases

• The current remains the same

In the positive direction, what does the IV graph of a diode show?

• A flat line followed by a steep increase

• A steep increase followed by a flat line

• A constant increase

• A constant decrease

What is the behavior of a diode in the negative direction on an IV graph?

• A steep increase

• A steep decrease

• A flat line on the x-axis

• A constant increase