Explanation

• Energy is measured in Joules (not Newtons).
• Force is measured in Newtons (not Joules).
• Velocity is measured in meters per second (m/s), not meters per second squared (m/s²), which is a unit of acceleration.

Explanation

An inductor stores energy in its magnetic field.

When current flows through the inductor, it generates a magnetic field around it, which stores energy.

Explanation

The resistance in an NTC (Negative Temperature Coefficient) Thermistor decreases with a rise in temperature.

This characteristic makes NTC thermistors useful for temperature sensing and control applications.

Explanation

A measure of the ability of a material to resist the flow of an electric current is called resistivity.

It quantifies how strongly a material opposes electrical conduction.

Explanation

A vehicle's battery is charged due to the chemical reactions between the electrodes and electrolyte inside it, which generate electrical energy.

This chemical effect is fundamental to the battery's ability to store and supply electrical power.

Explanation

Explanation

A refracting telescope has two lenses:

1. A primary lens (objective) that collects and focuses light.
2. A secondary lens (eyepiece) that magnifies the focused light to form an image.

Explanation

• In a mercury thermometer, the mercury in the bulb expands and rises in the tube, which has a linear scale ranging from 35°C to 42°C.
• This range is typically used for medical thermometers to measure human body temperature.

Explanation

• Aerosols are a type of mixture where solid particles or liquid droplets are suspended in a gas, like air.
• Examples of aerosols include mist, fog, dust, pollen, and spray cans.

Explanation

Thermal energy can be transferred through all three methods:

• Conduction: Direct transfer between particles in physical contact.
• Convection: Transfer through the movement of fluids.
• Radiation: Transfer through electromagnetic waves (e.g., light, radio waves).