Me with this quiz
question 1 (1 point)
(9.23_q1) in a closed circuit, the el...
Me with this quiz
question 1 (1 point)
(9.23_q1) in a closed circuit, the electricity can flow from the negative battery terminal to the positive terminal because of a electrical path is provided.
complete
incomplete
beautiful
ugly
question 2 (1 point)
(9.23_q2) in a dc circuit powered by a battery, the electricity flows from the battery terminal
positive to the negative
negative to the positive
right to the left
left to right
question 3 (1 point)
(9.23_q3) in electricity and electronics, dc stands for
district of columbia
detective comics
direct current
alternating current
question 4 (1 point)
(9.23_q4) the flow of electrons (e-) thru a wire is called
resistance
ohms
electricity
question 5 (1 point)
(9.23_q5) there has to be a reason for electrons to move through a wire. this pressure causing the electrons to move is called
amperes (amps)
current
voltage
ohms
question 6 (1 point)
(9.23_q6) the amount of electrons flowing through a wire is measured in and has the symbol i.
amperes (amps)
resistance
voltage
ohms
question 7 (1 point)
(9.23_q7) electronic materials have resistance to the flow of electrons and it is measured in
amperes (amps)
current
voltage
ohms (ω)
question 8 (1 point)
(9.23_q8) a material which allows fewer electrons to travel through it has
high electrical resistance (high ohms, ω)
low electrical resistance (low ohms, ω)
question 9 (1 point)
(9.23_q9) the flow of electrons thru a wire is called electricity. the amount of electrons flowing through the wire is called
amperes (amps)
current
voltage
ohms
question 10 (1 point)
(9.23_q10) an electronic device meant to provide resistance to the flow of electrons is called a .
resistor
led
wire
question 11 (1 point)
(9.23_q11) which provides more resistance?
a 1 mω resistor
a 1 kω resistor
a 1 ω resistor
question 12 (1 point)
(9.23_q12) what happens if we hook up an led into a circuit in the wrong direction?
the led glows twice as bright as normal
the led glows half as bright as normal
the led glows normally, it makes no difference at all.
the led doesn’t glow at all
question 13 (1 point)
(9.23_q13) the correct formula for calculating the resistance needed to protect an electronic component from too much voltage is
component amps / forward voltage
power source voltage / component amps
(power source voltage - component forward voltage) / component amps
question 14 (1 point)
(9.23_q14) the led lead should be connected to the positive side of the battery.
shorter
longer
right
left
question 15 (1 point)
(9.23_q15) when building a protype circuit in the real world, instead of clamping or soldering connections, we would use a
resistor
breadboard
light emitting diode
Answers: 1
Physics, 21.06.2019 17:10, rebecca0022
Aspring with a mass of 2 kg has a damping constant 14 kg/s. a force of 3.6 n is required to keep the spring stretched 0.3 m beyond its natural length. the spring is stretched 0.6 m beyond its natural length and then released. find the position of the mass at any time t. (assume that movement to the right is the positive x-direction and the spring is attached to a wall at the left end.)
Answers: 3
Physics, 22.06.2019 16:50, Jstylez1789
Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =
Answers: 1
Physics, 22.06.2019 18:30, justhereforanswers13
Ben (55kg) is standing on very slippery ice when junior (25kg) bumps into him. junior was moving at a speed of 8 m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision. give the answer in m/s. describe the work you did to get the answer.
Answers: 1
Physics, 22.06.2019 18:30, kingindoraptor
Against his financial advisor's advice, frank has decided to invest his money in some risky stocks because he once made quite a bit of money in the stock market. his decision illustrates a. the representativeness heuristic b. overconfidence c. the availability heuristic d. confirmation bias select the best answer from the choices provided
Answers: 3
Mathematics, 19.11.2020 17:30