Multiple Choice
A heater draws 20A when connected to a 110-V line. If the electric power costs 20 cents per kilowatt hour, the cost of running the heater for 10 hours is
A) $0.44.
B) $1.10.
C) $4.40.
D) $11.00.
E) none of the above
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q11: The current drawn by a 1200-W toaster
Q12: A 60-W and a 100-W light bulb
Q13: An electric heater is rated 300W 110V.
Q14: A 100-W lamp glows brighter than a
Q15: On some early automobiles both headlights failed
Q17: The equivalent resistance of any series of
Q18: The power dissipated in a 4-ohm resistor
Q19: It is correct to say that in
Q20: The current in two identical light bulbs
Q21: The source of electrons that illuminate a