Question

1

A 1.5 V battery stores 4.5 kJ of energy. How long can it light a flashlight bulb that draws 0.6 A?

2

You have a 1Ω, a 2 Ω and a 3 Ω resistor. What equivalent resistances can you form using all three?

3

Much of Europe uses AC power at 230 V rms and 50 Hz. Express this AC voltage in the form of V= Vpsin (ωt+ϕv), taking ϕv=0

Answer 1