Question

Find the energy lost by 10 C going from A to B if the potential difference between A is 1.2 J.

a) 22 J
b) 0.83 J
c) 120 J
d) 12 J

Answer 1

The energy lost by 10 C moving through a potential difference of 1.2 J is found using the formula W = Q × V, which gives us 12 J. Hence, the correct answer is 12 J.

Step-by-step explanation:

The question is asking to find the energy lost by a charge of 10 coulombs (C) that is moving through a potential difference (voltage) of 1.2 joules (J). This is a basic physics problem that relates to the concept of electric potential energy and can be solved using the formula:

Energy (W) = Charge (Q) × Potential Difference (V)

Where:

• W is the energy in joules.
• Q is the charge in coulombs.
• V is the potential difference in joules per coulomb, which is equivalent to volts.

Substituting the given values into the formula, we get:

W = 10 C × 1.2 J/C

W = 12 J

Thus, the energy lost by 10 C going from A to B when the potential difference is 1.2 J is 12 J. The correct answer is (d) 12 J.