C. James Clerk Maxwell
I believe he made a theory that light was electromagnetic radiation
A device that does work with one movement and changes the size or direction of a force is a simple machine.
Answer:

Explanation:
Given,
Magnetic field, B = 5 x 10⁻⁵ T
Number of turns, N = 450
length = 29 cm
Current,I = ?
Using formula of magnetic field due to solenoid




Hence, the current obtained is equal to 0.0256 A.
1. A broom swishing against the floor
2. a bee buzzing
3. a car engine
hope this helps!