Which of the following is true about a diode?
a. A diode causes the voltage to shift in phase by 90°, i.e., a right angle.
b. A diode has high resistance in one current direction and low resistance in the opposite current direction.
c. A diode can only be used with a transformer.
d. All filter circuits contain a diode.
e. All of the above.
b
You might also like to view...
Kirchhoff's Rules: Determine the current in the 7.0-? resistor for the circuit shown in the figure. Assume that the batteries are ideal and that all numbers are accurate to two significant figures.
A. 0.28 A B. 1.3 A C. 1.6 A D. 2.1 A
Eventually, all low mass stars will become white, then black, dwarfs
Indicate whether the statement is true or false
The turntable of a record player has an angular velocity of 8.0 rad/s when it is turned off. The turntable comes to rest 2.5 s after being turned off. Through how many radians does the turntable rotate after being turned off? Assume constant angular acceleration
a. 12 rad b. 8.0 rad c. 10 rad d. 16 rad e. 6.8 rad
A 10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg piece of lead, which is much denser than aluminum. Which one has the greater buoyant force exerted on it by the water?
A) the aluminum B) the lead C) The same buoyant force is exerted on both. D) It cannot be determined without knowing their volumes.