Question

Electricity. Introduction to the Digital Multimete

How does the current (I) through the flashlight using the good batteries compare to the current through the flashlight using the bad batteries? The flashlight has manufacturer specifications of 3.0 V and 0.5 A. This means that 3.0 V and 0.5 A required to make the flashlight turn on brightly.
In the last part of step 7 of the procedure, you measured the resistance of the flashlight when it had no current passing through it. The resistance of the flashlight is different, however, when current is passing through it. Explain how you measurement of the resistance of the variable resistor obtained in part 7 is a valid approximation of the resistance of the flashlight when it had current passing through it. Is the resistance higher when the flashlight is on or off?
This is My measurement for Part 7: Measuring resistance of a light buld
Resistance of variable resistor: 3.3
Resistance of cold light bulb: 1.4

Answer 1

The current through the flashlight using good batteries is 0.5 A, but it may be lower with bad batteries due to their higher internal resistance. The resistance of the flashlight when current is passing through it can be higher than the measured resistance of the variable resistor. The resistance of the flashlight is typically higher when it is turned on.

Step-by-step explanation:

When the good batteries are used in the flashlight, the current (I) passing through the flashlight will be the same as the current capacity of the batteries, which is 0.5 A. This is because the flashlight is designed to operate at the specified voltage and current provided by the good batteries.

On the other hand, when the bad batteries are used, the current through the flashlight may be lower than 0.5 A. This is because the bad batteries may have a higher internal resistance, which can limit the flow of current to the flashlight.

Therefore, the resistance of the flashlight when it has current passing through it can be higher than the measured resistance of the variable resistor in Part 7. The resistance of the flashlight is typically higher when it is turned on, as it requires more current to operate.