The temperature of the filament in a lightbulb is about 1900∘c∘c. what is this on the fahrenheit scale? express your answer using two significant figures.

Using two significant figures the temperature is Fahrenheit

Explanation:

Fahrenheit and Celsius are different scales of temperature. The conversion between Fahrenheit and Celsius is:

So, for 1900 Celsius degree

answer: option c. i.e. electric current flowing “downhill” from the negative electrode to the positive electrode in a battery

explanation:

the water analogy to the circuits define the pipes (water flows) to the electric current. now, we know that the electric current flows from the positive terminal to the circuit (as shown in the diagram attached).

hence, option c is the correct answer.