For the following question, select the correct option: What instrument measures electric current?

✅ D. Refraction

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

✅ A. Convex lens

A convex lens is thicker at the center and converges parallel light rays. Read more

✅ D. Elastic potential energy

A stretched spring stores elastic potential energy. Read more

✅ A. Ammeter

An ammeter measures electric current. Read more

✅ A. Refraction

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

✅ A. 9.8 m/s²

Near Earth's surface, gravitational acceleration is approximately 9.8 m/s². Read more

✅ A. Lever

A lever is a rigid bar that rotates around a fulcrum. Read more

✅ C. Elastic potential energy

A stretched spring stores elastic potential energy. Read more