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How much work is done in moving a charge of 5 C from a point in circuit at 220 volts to another point at 240 volts ?
  • a)
    50 Joules
  • b)
    100 Joules
  • c)
    125 Joules
  • d)
    250 Joules
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
How much work is done in moving a charge of 5 C from a point in circui...
To determine the amount of work done in moving a charge from one point to another in an electric circuit, we can use the formula:

Work = Charge × Voltage

Here, the charge is given as 5 C (coulombs), and the voltage difference between the two points is given as 240 volts - 220 volts = 20 volts.

Hence, the work done can be calculated as:

Work = 5 C × 20 V = 100 Joules

Therefore, the correct answer is option B, 100 Joules.

Explanation:
To understand why the work done is 100 Joules, let's break down the concept behind it.

The work done in an electric circuit is given by the product of the charge and the voltage. When a charge moves from a point with lower potential (220 volts) to a point with higher potential (240 volts), work is done on the charge by an external agent.

The work done on a charge can be thought of as the energy transferred to the charge. In this case, as the charge moves against the electric field, energy is required to overcome the potential difference.

The unit of work is Joules, which represents the amount of energy transferred. In this scenario, the charge of 5 C is moved across a potential difference of 20 volts. Multiplying these values together gives us the amount of work done, which is 100 Joules.

Therefore, the correct answer is option B, 100 Joules.
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Community Answer
How much work is done in moving a charge of 5 C from a point in circui...
W = QV = 5 × (240 – 220) = 100 J
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