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Question

A resistor whose value \( R = 10 \Omega \) is connected to a 10-volt battery. What will be the power \( P \) and the amount of heat \( H \) generated in one minute?

The correct answer is

\( P = 10 \) W, \( H = 600 \) J

To solve this problem, we need to determine the power \( P \) consumed by a resistor and the heat \( H \) generated in one minute.

The given values are:

  • Voltage \( V = 10 \) volts
  • Resistance \( R = 10 \Omega \)

Step 1: Calculate the Power \( P \)

The formula for power \( P \) using Ohm’s Law is:

\[ P = \frac{V^2}{R} \]

Substituting the given values:

\[ P = \frac{10^2}{10} = \frac{100}{10} = 10 \text{ W} \]

Step 2: Calculate the Heat \( H \) Generated in One Minute

Heat generated \( H \) is given by:

\[ H = P \times t \]

Where time \( t = 60 \) seconds (since 1 minute = 60 seconds).

Substituting the values:

\[ H = 10 \times 60 = 600 \text{ J} \]

Conclusion: The power and heat generated are \( P = 10 \) W and \( H = 600 \) J, respectively.

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