What instrument measures electric current — select the correct answer.

✅ A. Refraction

Refraction is the change in direction of light due to a change in speed between media. Read more

✅ A. Ammeter

An ammeter measures electric current. Read more

✅ A. Watt

Power is measured in watts. Read more

✅ C. ½mv²

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

✅ A. Refraction

Refraction is the change in direction of light due to a change in speed between media. Read more

✅ B. Hertz

Frequency is measured in hertz. Read more

✅ C. Tesla

Magnetic flux density is measured in teslas. Read more

✅ A. Newton's third law

Newton's third law describes action and reaction forces. Read more