A student builds a circuit using three 1-ohm resistors in series. The current in the circuit is 1.5 amps. a. How many D-cells are in the circuit? b. What is the voltage drop across each resistor?

Aform of energy that is reflected or emitted from objects in the form of electrical and magnetic waves that can travel through space. there are many forms of  electromagnetic  energy including gamma rays, x rays, ultraviolet radiation, visible light, infrared radiation, microwaves and radio waves.

Since the pully is a simple machine so the mechanical advantage is a 1