Fill in a T/F answer for each statement below: 1. [ ] When an electric current f

Question

Fill in a T/F answer for each statement below:

1. [ ] When an electric current flows through a conducting wire, the electric field and charge carrier density inside the conducting wire are no longer zero.

2. [ ] The direction of flow of electrons is opposite the direction of the current.

3. [ ] The instantaneous speed of charge carriers in a metal cannot be much higher than their “drift speed”.

4. [ ] The drift speed of electrons in a copper wire is much greater than 1 mm/sec.

5. [ ] The resistance of a typical metal has a negative temperature coefficient.

6. [ ] The electric power dissipated in a resistor is converted to thermal heat.

Explanation / Answer

1.True

2.True. since we take the direction of the current is the direction of the positive charges

3.False.

4.False. since drift velocity is in the order of 10-4m/s i.e 10-1mm/s

5.False

6.True

Related Questions

Navigate

• Browse (All)
• Browse F
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.