Multiple choice general knowledge science & technology

When a p.d. of 2V is applied across a resistor, 10 J of energy are coverted. What charge flows through the resistor?

  1. 4.0 Columbs

  2. 5.0 Columbs

  3. 6.0 Columbs

  4. 7.0 Columbs
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Using the formula Energy = Voltage × Charge, we can calculate Charge = Energy / Voltage = 10J / 2V = 5 Coulombs. The relationship E = VQ is fundamental in electrical circuits.

AI explanation

To find the charge flowing through the resistor, we can use the formula:

[Q = \frac{W}{V}]

where: Q is the charge (in Coulombs), W is the energy converted (in Joules), V is the potential difference (in Volts).

Given: V = 2V (potential difference) W = 10J (energy converted)

Substituting these values into the formula:

[Q = \frac{10J}{2V}]

Simplifying:

[Q = 5C]

So, the charge flowing through the resistor is 5 Coulombs.

Therefore, the correct answer is B) 5.0 Coulombs.

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