A car battery is rated at 1,020 AH (i.e., amps x hours). Calculate the number of coulombs this is equivalent to.

If a brass wire is 4 cm long with a diameter of 1.3 cm, calculate its resistance. Determine the voltage drop over the brass wire for a 1.0 A current in the circuit.

Suppose the current in a conductor decreases exponentially with time according to the equation I(t) = I,er, where I, is the initial current (at t = 0), and t is a constant having dimensions of time. Consider a fixed observation point within the conductor. (Use the following as necessary: I, and t) (a) How much charge passes this point between t = 0 and t = t? (If applicable, round any coefficients to 3 decimal places.) Q(t) = (b) How much charge passes this point between t = 0 and t = 10t? (If applicable, round any coefficients to 5 decimal places.) Q(10t) = %3D (c) How much charge passes this point between t = O and t = o? (If applicable, round any coefficients to 3 decimal places.) Q(0) =

A microwave oven draws 8 A when supplied with 120 V. The microwave is subsequently used for 6 minutes to thaw a frozen chicken breast. In kilojoules, how much electrical energy does the microwave use while thawing? Round your answer to the nearest whole number.

What are the expected readings of the following in the figure below? (R = 9.50 Q, AV = 6.50 V) A AV 10.0 N 5.00 N + R 4.50 V (a) ideal ammeter (Give your answer in mA.) (b) ideal voltmeter (Give your answer in volts.) V (c) What If? How would the readings in the ammeter (in mA) and voltmeter (in volts) change if the 4.50 V battery was flipped so that its positive terminal was to the right? ideal ammeter ideal voltmeter V

Calculate equilibrium membrane potential due to flow of potassium ions. Concentration of potassium ions inside the cell is ??? = 440 mmole/liter and outside ???? = 49 mmole/liter. Temperature of diffusion is ? = 20 0C. Find electric field ? within membrane if it’s thickness is d = 8 nm.

Consider a circuit consisting of a battery (4.26 Volts) and three resistors in parallel. If the resistances of the resistors are 16.3 Ohms, 17.7 Ohms, and 33.3 Ohms, calculate the current drawn from the battery. Give you answer in milliamperes to at least 3 significant figures.

In the schematic below two batteries are in series and drive current through the circuit as shown. The first resistor has a voltage drop AV = 2.8 V, the middle resistor has a resistance of R = 154 Q, and the last resistor has a voltage drop AV2 = 1.6 V. Given these parameters, what is the magnitude of current flowing through the circuit in milli-amps (mA)? Giver your answer to 3 significant figures. %3D AV, 3.0 V 4.5 V ww

A certain type of rechargeable battery can deliver a current of 0.6A for 400s, before its voltage drops and it needs to be recharged. Calculate: a) The total charge that battery can deliver before it needs to be recharged. b) The maximum time the battery could be used for without being recharged if the current through it were 0.7A. State your answer corrects to 2 decimal places.

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