The cord from an appliance is too short to reach the wall outlet in your room. You have two extension cords to choose from. (a) Find the voltage drop in the first extension cord having a 0.0700 Ω resistance and through which 5.80 A is flowing.  V (b) The second extension cord is cheaper and utilizes thinner wire. It has a resistance of 0.700 Ω and the current flowing through it is 5.80 A. By what amount does the voltage supplied to the appliance change when the first extension cord is replaced by the second?

none of the preceding DETAILS SHIPPS15 8.2.E.020. Two resistors with values of 29 0 and 45 0, respectively, are connected in parallel and hooked to a 18 V batte (a) What would be the current in the circuit? A (b) What would be the power expended in the circuit? W DETAILS SHIPPS15 8.2.E.018. A 13.0 W LED light bulb is turned on. It has an operating voltage of 120 V. (a) How much current (in A) flows through the bulh?

Figure P18.19 shows a circuit diagram. (R1 = 1550 , R2 = 430 , ΔV = 20.5 V) (a) Determine the current. (b) Determine the potential of wire A relative to ground. (c) Determine the voltage drop across the 1550  resistor.

A battery has an emf of 15.0 V. The terminal voltage of the battery is 10.8 V when it is delivering 26.0 W of power to an external load resistor R. (a) What is the value of R?  (b) What is the internal resistance of the battery?

60 W 30 W Bulb A Bulb B V,-120V Vs-120V PA-60W Pa-30w Light bulb A has a power rating of 60 W when plugged into a 120 v outlet. Bulb B has a power rating of 30W when plugged into the same 120V outlet. Which of the following are correct statements? SELECT TWO ANSWERS a. Bulb A has twice the resistance of bulb B b. The following equation relates the current through each bulb la = 218 c. If both bulbs were turned on for 5 minutes bulb B would use twice the energy of bulb A O d. Bulb A has half the resistance of bulb B

You are given the job of evaluating potential power line systems. One system is designed to operate at V = 3000 V, and another would operate at V = 6500 V. Suppose the power line at the higher voltage would dissipate 3 % of the power that it carries. What percentage of the power would be dissipated in the low-voltage power line?

The resistance of a bagel toaster is 11 Ω. To prepare a bagel, the toaster is operated for one minute from a 120-V outlet. How much energy is delivered to the toaster?

The cord from an appliance is too short to reach the wall outlet in your room. You have two extension cords to choose from. a) Find the voltage drop in the first extension cord having a 0.0780 Ω resistance and through which 7.60 A is flowing. b)The second extension cord is cheaper and utilizes thinner wire. It has a resistance of 0.780 Ω and the current flowing through it is 7.60 A. By what amount does the voltage supplied to the appliance change when the first extension cord is replaced by the second?