Question 1

Electrons move in an electrical circuit

Accepted Answer

A)  by interacting with an established electric field. 
B)  because the wires are so thin. 
C)  by colliding with molecules. 
D)  by being bumped by other electrons. 
E)  none of these 
A)  by interacting with an established electric field. 
B)  because the wires are so thin. 
C)  by colliding with molecules. 
D)  by being bumped by other electrons. 
E)  none of these

Question 2

The electric field inside an uncharged metal ball is zero. If the ball is negatively charged, the electric field inside the ball is then

Accepted Answer

A)  greater than zero. 
B)  zero. 
C)  less than zero. 
A)  greater than zero. 
B)  zero. 
C)  less than zero.

Question 3

A power line with a resistance of 2 ohms has a current of 80 A in it. The power dissipated in the line is

Accepted Answer

A)  160 W. 
B)  320 W. 
C)  12,800 W. 
D)  40 W. 
E)  none of these 
A)  160 W. 
B)  320 W. 
C)  12,800 W. 
D)  40 W. 
E)  none of these

Electrons move in an electrical circuit

The electric field inside an uncharged metal ball is zero. If the ball is negatively charged, the electric field inside the ball is then

A power line with a resistance of 2 ohms has a current of 80 A in it. The power dissipated in the line is

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Exam 10: Static and Current Electricity

Electrons move in an electrical circuit

The electric field inside an uncharged metal ball is zero. If the ball is negatively charged, the electric field inside the ball is then

A power line with a resistance of 2 ohms has a current of 80 A in it. The power dissipated in the line is

About Science

Atoms

Equilibrium and Linear Motion

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Temperature, Heat, and Thermodynamics

Heat Transfer and Change of Phase

Magnetism and Electromagnetic Induction

Waves and Sound

Light Waves

Properties of Light

Quantum Theory

The Atomic Nucleus and Radioactivity

Physics of Rotation and Equilibrium

Filters