Question

Напряжение на автомобильной лампочке 12 В.Какой заряд прошел через нить накала лампочки,если при этом была совершена работа 1200 Дж?

Answer 1

U=12 В, A=1200 Дж,
   q=?   
A=qU, q=A/U,
q=1200/12=100 Кл.

Answer 2

Calculation of Charge through the Filament of a Car Light Bulb

To calculate the charge that passed through the filament of a car light bulb, we need to use the formula:

Q = W / V

Where: - Q is the charge (in coulombs) - W is the work done (in joules) - V is the voltage (in volts)

In this case, the voltage across the car light bulb is given as 12 V, and the work done is 1200 J.

Substituting these values into the formula, we can calculate the charge:

Q = 1200 J / 12 V = 100 C

Therefore, the charge that passed through the filament of the car light bulb is 100 coulombs.

Please note that the calculation assumes that the voltage remains constant throughout the process and that the resistance of the filament remains constant as well.