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

Question 1 / 270705eccefa3bacbc34ba4d47eeb

Question 1 of 270705eccefa3bacbc34ba4d47eeb

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

Question 1 of 27070

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

🔍 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