A lamp is provided with 110 volts and draws...

A lamp is provided with 110 volts and draws...

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Question 1 of 205eccefa3bacbc34ba4d47eeb

A lamp is provided with 110 volts and draws a current of 0.8 amps. What is the hot resistance of the lamp filament?

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A lamp is provided with 110 volts and draws a current of 0.8 amps. What is the hot resistance of the lamp filament?

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🔍 Key Concepts

• Use Ohm's Law to relate voltage (V), current (I), and resistance (R) • Remember the basic formula: ( R = \frac{V}{I} ) and keep track of units • Estimate whether the resistance should be relatively high or low for a small current at this voltage

💭 Think About

• Given voltage and current, how can you rearrange Ohm’s Law to solve for resistance? • If the current is less than 1 amp at 110 volts, should the resistance be closer to 10 ohms or 100 ohms? Why? • After calculating, which option is numerically closest to your result when you divide voltage by current?

✅ Before You Answer

• Be sure you are using volts for V and amps for I in the same formula • Double-check your division carefully; a misplaced decimal point will change the answer by a factor of 10 • After you compute R, compare it to each choice and confirm it matches to at least one decimal place

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