9. A9-V to the A) The current will not change current through the circuit if the
ID: 2040280 • Letter: 9
Question
9. A9-V to the A) The current will not change current through the circuit if the load is increa throesistance of O.5 Q and it sed? t through the ei esistance of 0.5 ? and is attached to a 5 ? load, what will happen The cu B) Current will increase C) Current will decrease D) The E) Not enough information is given current will increase and decrease in a sinusoidal fu nction s the resistance of a 100 w lightbulb if it draws a 0.4 amp current? A) 0.4 O ?) 10? C) 250 ? D) 625 ? E) 1000 ? A kitchen contains a 900 W toaster, a 720 W microwave, and a 350 W mixer. The outlets are 120-V and are connected in parallel (which allows you to add up the current to find a total). If the circuit breaker is tripped if the current goes over 15 A, which combination of appliances, when used simultaneously, will trip the circuit breaker? A) Toaster and microwave B) Toaster and mixer C) Mixer and microwave D) Toaster, mixer, and microwave E) All of the above 11.Explanation / Answer
9) V = 9 V, r =0.5 ohm, R = 5 ohm
V = I(R+r)
internal resitance and load resistance are in series, in series combinaiton current is constant
correct option is (A)
10) P = 100W, I = 0.4 A
P = I^2*R
100 = 0.4*0.4*R
R = 625 ohms
correct option is (D)
11) correct option is (E)
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.