HELP HELP HELP! Brainiest to the correct answer. A battery moves 150c of charge through a potential difference of 12v in 1 minute. Calculate the power developed in the battery.

30 Watts

Explanation:

We're provided with the following information:

Amount of Charge flown (Q) = 150 CPotential Difference (V) = 12 VTime (T) = 1 min

= 60 seconds

Current:

Current is the rate of flow of charge ,i. e., The amount of charge flowing "per second":

We have:

Charge flown (Q) = 150 CTime (T) = 60 seconds

Finding the current flown using the above mentioned formula:

=> I = 2.5 A

A(Amperes) is the SI unit of Current

Relation between Power, Voltage and Current:

We've a relation between Power, Current and Voltage, derived with the help of  "Joule's Law of Heating", and that is:

We can finally find Power, Since we have:

Current (I) = 2.5 AVoltage (V) = 12 V

=> P = 12 × 2.5

=> P = 30 W

W, Watts, is the Si unit of Power

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Ohm's law tells you that i = v/r where v is equivalent voltage and r is equivalent resistance of the circuit
since all circuits have the same voltage, your question is really asking which circuit has the lowest total resistance, since the lower the resistance, the higher the current
circuit a has a resistance of 5 ohms; circuit c is in series so has a resistance of 10 ohms; circuit b is in parallel and therefore has a resistance of 2.5 ohms (review your notes on adding resistances in parallel and series); therefore b has the highest current