Three 30-Ω Resistors Are Connected in Parallel to a 12

Q27: Three wires of the same diameter and

Q33: A metal wire has a resistance of

Q34: A lightbulb drawing a current of 0.60

Q35: How long is a wire made from

Q36: What is the current through the 6-Ω

Q38: A 100-W bulb and a 40-W bulb,each

Q39: A hair dryer draws 1500 W,a curling

Q40: If a light bulb has half the

Q41: Carbon has a negative temperature coefficient of

Q42: Consider the circuit shown in the figure.What