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?

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

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

A potential difference of 1.0 V is maintained across a 10.0 Q resistor for a period of 20.0 s. What total charge passes by a point in one of the wires connected to the resistor in this time interval. 1. Q1C 2. O2C 3. ОЗС 4. 04C 5. 05 C

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 bulb? (b) What is the resistance (in 0) of the bulb? (c) How much energy (in J) is used each second? J each second

A 4.5×10−4 V/m electric field creates a 2.0×1017 electrons/s current in a 1.6-mm-diameter aluminum wire. What is the drift speed? What is the mean time between collisions for electrons in this wire?

The voltage across a 2.5-µF capacitor in a copying machine is zero. What is the voltage after 15 ms if a current of 25 mA charges the capacitor? The voltage at t = 15 ms is V. (Type an integer or a decimal.)

008 A length of metal wire has a radius of 0.004 m and a resistance of 0.11 2. When the potential difference across the wire is 17 V, the electron drift speed is found to be 0.000353 m/s. Based on these data, calculate the density of free electron in the wire. The fundamental charge is 1.6 × 10 Answer in units of m ¬19 C.