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Physics 22 Online
OpenStudy (anonymous):

What happens when like charges are brought together? a. THEY ARE ATTRACTED TO EACH OTHER b. they repel each other c. they nuetralize each other d. they from one larger charge

OpenStudy (shayaan_mustafa):

b. They repel each other.

OpenStudy (anonymous):

is it correct

OpenStudy (anonymous):

Yeah.

OpenStudy (shayaan_mustafa):

Yes.

OpenStudy (anonymous):

ok

OpenStudy (shayaan_mustafa):

As an electronics engineer. These all are child play before me :p

OpenStudy (anonymous):

Car headlights have both low beams and high beams. The high beams may be necessary when it is very dark outside. If the power for the high beam is 60.0 watts and the current is 5.0 amps, how much voltage is required? A. 65 VOLTS B. 0.088 VOLTS C. 12 VOLTS D. 55 VOLTS

OpenStudy (shayaan_mustafa):

C. 12 Volts

OpenStudy (shayaan_mustafa):

\[\large P=VI\] \[\large V=\frac{P}{I}\] \[\large V=\frac{60}{5}\] \[\large V=12Volts\]

OpenStudy (anonymous):

In the process of electricity, what flows through the wires? A. PROTONS B. NEUTRONS C. ELECTRONS D. POSITRONS

OpenStudy (anonymous):

Electrons

OpenStudy (shayaan_mustafa):

c. Electrons

OpenStudy (shayaan_mustafa):

Lol. these things are just easy.

OpenStudy (anonymous):

YES I KNOW LOL

OpenStudy (anonymous):

Which would be best suited to form a circuit? a. wooden block b. glass rod c. metal wire d paper

OpenStudy (anonymous):

C. Metal wire

OpenStudy (anonymous):

ok hold on a second

OpenStudy (anonymous):

yall still there?

OpenStudy (anonymous):

NOOOOOO. Jk. Yeah.

OpenStudy (anonymous):

lol jokes huh lol

OpenStudy (anonymous):

What does AC stand for in physics?

OpenStudy (anonymous):

A alternating current b. alternative circuit c.alternative composition d. all charge

OpenStudy (anonymous):

Alternating current.

OpenStudy (anonymous):

Which type of motor uses a brush and commutator to operate? A. ac motor b. split ring motor c. dc motor d. brush motor

OpenStudy (anonymous):

DC motor.

OpenStudy (anonymous):

Which statement is true about AC? A. the electrons move back and fourth b. the +/- polarity is costant c. it is most common in portable devices d. it can only produce low voltage

OpenStudy (anonymous):

I THINK it's A.

OpenStudy (anonymous):

Which device is most likely to operate on alternating current? a. refrigeator b. flashlight c. remote control d.cell phone * it was right:)*

OpenStudy (anonymous):

A.

OpenStudy (anonymous):

i love you sidd lol<3:)

OpenStudy (anonymous):

HAha.. You done?

OpenStudy (anonymous):

no not yet i have to finish them all i have to get all stars

OpenStudy (anonymous):

do you mind still helping me or no

OpenStudy (anonymous):

Dude. I'hve to go. It's like 4am here. So yeaaaahhhhh. Sorrrrrrry :(

OpenStudy (anonymous):

WAIT JUST 2 MORE AND THATS IT

OpenStudy (anonymous):

Okay. Quick!! :D

OpenStudy (anonymous):

KAY

OpenStudy (anonymous):

If the cross-sectional area of a wire is decreased while all other factors remain the same, how will the resistance change? a. it will increase b. it will decrease c. it will go to zero d.the-cross sectional area does not affect the resistance

OpenStudy (anonymous):

A. It'll increase.

OpenStudy (shayaan_mustafa):

a. It will increase

OpenStudy (anonymous):

How many ohms of resistance must be present in a circuit that has 240 volts and a current of 15 amps? a. 3,600 ohms b.16 ohms c. 230 ohms d.0.063 ohms

OpenStudy (anonymous):

shayaan can you stay and helpp me cuz sidd is leaving

OpenStudy (shayaan_mustafa):

b. 16ohms

OpenStudy (shayaan_mustafa):

Yes. But I will go shortly. Until you can ask.

OpenStudy (anonymous):

What is the voltage of a circuit in a toaster with 12.0 amps of current and 8.0 ohms of resistance? a. 96 volts b. 1.5 volts c. 0.67 volts d. 20 volts

OpenStudy (anonymous):

well ima type fast lol

OpenStudy (shayaan_mustafa):

a. 96volts

OpenStudy (anonymous):

An electric heater works by passing a current of 112 amps through a coiled metal wire, causing it to become red hot. If the resistance of the wire is 0.95 ohms, what voltage must be applied to it? a. 106 volts b. 118 volts c. 124 volts d. 101 volts

OpenStudy (shayaan_mustafa):

a. 106 volts

OpenStudy (anonymous):

A 12-volt car battery pushes a charge through the headlight circuit with a resistance of 8.5 ohms. How much current is passing through the circuit? a. 670 amps b. 0.71 amps c. 102 amps d. 1.4 amps

OpenStudy (shayaan_mustafa):

d. 1.4 amps

OpenStudy (anonymous):

ok hold on a second

OpenStudy (anonymous):

dont leave wait my questions are loading up

OpenStudy (shayaan_mustafa):

ok dear :s

OpenStudy (anonymous):

How will the current change in a series circuit if more resistors are added to it? a. the current will increase b. the current will decrease c. the current will double for each resistor added d. the current is not affected by the number of resistors

OpenStudy (anonymous):

it was wrong lol:/

OpenStudy (anonymous):

A combined circuit has two resistors in parallel (10.0 ohms and 14.0 ohms) and another in series (5.0 ohms). If the power source is 9.0 volts, what is the current? A. 1.6 amps b. 5.8 ams c. 0.83 amps d. 1.3 amps

OpenStudy (shayaan_mustafa):

Wait my answer is wrong?

OpenStudy (anonymous):

yea it was idk how lol

OpenStudy (shayaan_mustafa):

No. I am pretty sure. I am not wrong. I have series arrangement in my mind so I am right.

OpenStudy (anonymous):

yea i pressed it and it said it was wrong..idk but just answer this one i can only miss 4 to pass lol

OpenStudy (anonymous):

just answer this one A combined circuit has two resistors in parallel (10.0 ohms and 14.0 ohms) and another in series (5.0 ohms). If the power source is 9.0 volts, what is the current? A. 1.6 amps b. 5.8 ams c. 0.83 amps d. 1.3 amps

OpenStudy (shayaan_mustafa):

c. 0.83 amps

OpenStudy (anonymous):

hold on

OpenStudy (anonymous):

let me check my percentage

OpenStudy (anonymous):

i got an 84:)..thank you so muchh i owe you babygirl!!!:)

OpenStudy (shayaan_mustafa):

babygirl?? I ain't a babygirl madam.

OpenStudy (anonymous):

oh im sorry your a lady

OpenStudy (anonymous):

i meant thank you mam:)

OpenStudy (shayaan_mustafa):

O_O What???? I am a boy. Young good looking handsome boy madam leonice17. ::))

OpenStudy (anonymous):

lol o i thought you were a girl lol

OpenStudy (shayaan_mustafa):

lol.. fine. well tc.

OpenStudy (anonymous):

thank you

OpenStudy (shayaan_mustafa):

Welcome ever.

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