Multiple Choice
A 400-W heater carries a current of 4.0 A.How much does it cost to operate the heater for 50 min if electrical energy costs 6 cents per kWh?
A) 2 cents
B) 12 cents
C) 2.9 cents
D) 0.1 cents
E) 40 cents
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q6: When you flip a switch to turn
Q29: An electric car is designed to run
Q30: A 24-Ω platinum wire at 25°C with
Q31: If electrical energy costs 4 cents per
Q32: A Nichrome wire has a radius of
Q33: If a 12-V battery,with negligible internal resistance,and
Q35: A water pump draws about 3.7 A
Q36: A solar panel measures 70 cm ×
Q76: Materials having resistance changes as voltage or
Q83: When current is flowing in a superconductor,which