What is the unit of magnetic flux density — select the correct answer.

✅ A. Pascal

Pressure is measured in pascals. Read more

✅ A. ½mv²

Kinetic energy is one-half mass times velocity squared. Read more

✅ D. 3 × 10^8 m/s

Light travels in vacuum at approximately 3 × 10^8 meters per second. Read more

✅ D. Sound wave

Sound is a mechanical wave and requires a medium. Read more

✅ A. Energy

The joule is the SI unit of energy and work. Read more

✅ D. Reflection

Reflection is the return of light from a surface. Read more

✅ A. Ammeter

An ammeter measures electric current. Read more

✅ C. Voltmeter

A voltmeter measures potential difference. Read more