Author Question: When a current I1 = 1.3 A passes through a wire of cross-sectional area A1 = 5 mm2 the drift ... (Read 83 times)

DelorasTo · **on:** Jul 29, 2018

When a current I1 = 1.3 A passes through a wire of cross-sectional area A1 = 5 mm2 the drift velocity of the charge carriers is v1 = 2.7 10-5 m/s.

What is the drift velocity of the charges when a current I2 = 0.5 A passes through a wire, made of the same material of cross-sectional area A2 = 3 mm2?
A)

8.4 10-5 m/s
B)

6.4 10-5 m/s
C)

1.7 10-5 m/s
D)

3.2 10-5 m/s
E)

2.1 10-5 m/s

Question 2

A wave has a period 2.00 s, an amplitude 20.0 cm, and a wavelength 3.00 m. What is the speed of the wave?

A)

10.0 cm/s

B)

1.50 m/s

C)

340 m/s

D)

0.100 cm/s

E)

0.667 m/s