Multiple Choice
An electron beam contains 1.5 × 1017 electrons per m3 and is confined to circular cross-sectional region of diameter 0.025 mm. The electrons in the beam are extremely energetic and travel at nearly the speed of light. What is the current in the beam?
A) 1.4 A
B) 3.5 mA
C) 350 mA
D) 14 mA
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q34: A series circuit consists of a 12.0
Q35: Copper has 8.5 × 10<sup>28</sup> current carrying
Q36: A bird can safely land on a
Q37: A 12.0 V battery has an internal
Q38: Two capacitors of values 6.0 mF and
Q40: Two carbon cylinders have radii 2r and
Q41: A 1.56-V battery has an internal resistance
Q42: In the diagram, each resistor is 3
Q43: A carbon resistor is made of a
Q44: Four 12 Ω resistors are connected together.