The power rating of a resistor is the maximum power the resistor can safely dissipate without too great a rise in temperature and hence damage to the resistor.
a) if the power rating of a 15kω resistor is 5.0 w, what is the maximum allowable potential difference across the terminals of the resistor?
express your answer using two significant figures.
b) a 9.0kω resistor is to be connected across a 120-v potential difference. what power rating is required?
express your answer using two significant figures.
c) a 100.0 ω and a 150.0 ω resistor, both rated at 2.00 w, are connected in series across a variable potential difference. what is the greatest this potential difference can be without overheating either resistor?
d) what is the rate of heat generated in a 100.0 ω resistor under these conditions?
e) what is the rate of heat generated in a 150.0 ω resistor under these conditions?