{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Ch19 - Q18.2a Current is flowing in this circuit Direction...

This preview shows pages 1–11. Sign up to view the full content.

Q18.2a Current is flowing in this circuit. Direction of electron velocity at A ?

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Q18.2b Current is flowing in this circuit. Direction of electron velocity at B ?
Q18.2c Steady state electron current at A vs. electron current at B ? 1) i A > i B 2) i A = i B 3) i A < i B

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Q18.2d Steady state electron current in thick wire vs. electron current in thin wire? 1) i 1 > i 2 2) i 1 = i 2 3) i 1 < i 2 4) Not enough information
Q18.3a In a metal wire in a particular circuit: 1e-5 m/s = Drift speed 1e29 = # Mobile electrons / m 3 1e-4 (m/s)/(V/m) = Electron mobility 1e-6 m 2 = Cross-sectional area What is the magnitude of the electric field inside the wire? 1) 0.1 V/m 2) 10 V/m 3) 1e18 V/m 4) 1e-9 V/m 5) 1e-15 V/m

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Q18.3b Wires made of same material. Drift speed of electrons in thick wire vs. drift speed of electrons in thin wire? 1) v 1 > v 2 2) v 1 = v 2 3) v 1 < v 2 4) Not enough information
Q18.3c Wires made of same material A 1 = 4*A 2 1) v 1 = 4*v 2 2) v 1 = (1/4)*v 2 3) v 1 = (1/16)*E 2 4) v 1 = 16*v 2 5) Not enough information

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Q18.3d Wires made of same material A 1 = 4*A 2 1) E 1 = 4*E 2 2) E 1 = (1/4)*E 2 3) E 1 = (1/16)*E 2 4) E 1 = 16*E 2 5) Not enough information
Q18.3e Wires made of different materials n 1 = (1/3)*n 2 1) E 1 = 3*E 2 2) E 1 = (1/3)*E 2 3) E 1 = (1/9)*E 2 4) E 1 = 9*E 2 5) Not enough information

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Wires: different materials, same diameter Which statement is correct? ( n
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 39

Ch19 - Q18.2a Current is flowing in this circuit Direction...

This preview shows document pages 1 - 11. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online