A coil lies flat on a level table top in a region where the magnetic field vector points straight up. The magnetic field suddenly grows stronger
When viewed from above, what is the direction of the induced current in this coil as the field increases? A)
counterclockwise
B)
clockwise
C)
clockwise initially, then counterclockwise before stopping
D)
counterclockwise initially, then clockwise before stopping
E)
There is no induced current in this coil.
B
You might also like to view...
Meteors are
a) asteroids or comet debris that passes into Earth's atmosphere and burns up b) a group of rocky objects between the orbits of Jupiter and Saturn c) comets that are vaporized when they pass very close to the Sun d) comets that escape the Solar System without being vaporized by the Sun e) a group of rocky objects between the orbits of Mars and Jupiter
The percentage by mass of hydrogen in methane, CH4, is about
a. 25%. b. 75%. c. 80%. d. 20%.
What is the maximum number of 100-W lightbulbs you can connect in parallel in a 120-V home circuit without tripping the 20-A circuit breaker?
What is the impedance at 1500 Hz if a 100-? resistor, 20-mH coil, and 1.0-?F capacitor are connected in series?
A) 0.19 k? B) 82 ? C) 0.13 k? D) 0.11 k?