A 60W lightbulb in your house is left on for 42 minutes while you do some of your homework. The mains voltage in Australia is 230V. How many electrons pass through the lightbulb in that time?

A 15 Ω resistor is connected to the terminals of a 1.5 V battery.a. Draw a graph showing the potential as a function of distance traveled through the circuit, starting from V = 0 V at the negative terminal of the battery.b. What is the current in the circuit?

Before leaving the house in the morning, you plop some stew in your slow cooker and turn it on Low. The slow cooker has a 160 Ohm resistor and is plugged into a 120 V outlet. When you come home 8 hours later, how much charge has passed through the slow cooker circuit in that time?

A student set up a simple circuit with an ohmic lightbulb, battery and switch. When the switch is closed, the student measures 527mA being drawn from the 4.2V battery by the lightbulb. They decide to leave the switch closed for a few hours. When they measure the current again, they find it is now 397mA, and correctly guesses that the battery has dropped voltage. What would they measure the new voltage across the battery to be? (Units: V)

One day on a particularly stormy night, a science student is watching the rain and thinking about all the homework they have to do. Just then a bolt of lightning discharges 21 C from one cloud to a power line. The student was able to use their iPhone to measure the potential difference to be 15,050 volts. With this data, how much energy is lost by the cloud and gained by the power line? O O a b с Od 316,050 J 442,470 J 94,815J 221,235 J

SPEAR, a storage ring about 72.0 m in diameter at the Stanford Linear Accelerator (closed in 2009), has a 20.0-A circulating beam of electrons that are moving at nearly the speed of light. How many electrons are in the beam?

V4

In the figure below, the current in Rs is Is = 1.40 A and the resistances are R1 = R2 = R3 = 2.00 O, R4 = 16.0 Q, Rs = 8.00 Q, and Rs = 4.00 Q. What is the emf of the ideal battery? R2 R, R1 R4 R6 Rg

One electron has a charge of 1.60 x 10^19 C. A car's starter motor draws 50 A of current from the cars battery. If the start-up time is 1.5 seconds, how many electrons pass through a point in the circuit during this time? A. 4.96 x 10^20 electrons B. 4.66 x 10^21 electrons C. 4.96 x 10^21 electrons D. 4.69 x 10^20 electrons

An electric device delivers a current of 1 A for 10 seconds. How many electrons (1.6x10-19C) flow through this device? Select one: O a. 0.62x1020 O b. 6.2x1020 О с. 1 O d. 100 О е. 10