Question

use the following information to answer question 7.

information about a circuit

• contains one light bulb
• draws a current of 3.0 a
• has two wires
• connects to a 6.0 v battery

1. the resistance of the circuit described above is

a. \\(2.0\\ \omega\\)
b. \\(3.0\\ \omega\\)
c. \\(4.0\\ \omega\\)
d. \\(6.0\\ \omega\\)

1. tungsten, a poor conductor, is used as a filament in some light bulbs because tungsten

a. allows electrons to flow easily
b. allows protons to flow easily
c. resists the flow of electrons
d. resists the flow of protons

Explanation:

Identify given values for Question 7

We find the circuit parameters from the provided information box.

• Voltage \(V = 6.0\text{ V}\)
• Current \(I = 3.0\text{ A}\)

Apply Ohm's Law for Question 7

We use the relationship between voltage, current, and resistance.

• Formula: \(R = \frac{V}{I}\)
• Calculation: \(R = \frac{6.0\text{ V}}{3.0\text{ A}} = 2.0\ \Omega\)
• This matches option A.

Analyze material properties for Question 8

We examine the definition of a poor conductor.

• Conductors allow electrons to flow easily.
• Poor conductors (resistors) resist electron flow.
• Protons do not flow in solid conductors.

Determine the correct option for Question 8

We match our analysis to the given choices.

• Tungsten resists the flow of electrons.
• This matches option C.

Answer:

Question 7

• (A) \(2.0\ \Omega\) (Correct answer)
• (B) \(3.0\ \Omega\)
• (C) \(4.0\ \Omega\)
• (D) \(6.0\ \Omega\)

Question 8

• (A) allows electrons to flow easily
• (B) allows protons to flow easily
• (C) resists the flow of electrons (Correct answer)
• (D) resists the flow of protons