IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => GCE AS & A2 Level => Sciences => Topic started by: thecandydoll on June 01, 2010, 10:59:13 am

Title: Physics HELP =)
Post by: thecandydoll on June 01, 2010, 10:59:13 am

I know this sounds realllly stupid,But i want to know how to connect a electric circuit,as what goes to positive and negative
How to connect resistors in series and parallel,Even a diagram would be helpful
:)
Thank you soo muchhh! :) :)

Title: Re: Physics HELP =)
Post by: Meticulous on June 01, 2010, 11:03:34 am

www.practicalphysics.org

Title: Re: Physics HELP =)
Post by: Twinkle Charms on June 01, 2010, 11:09:35 am

all the devices are connected with positive terminals in series, positive of the battery to positive of the ammeter, -ve of the ammeter to say +ve of diode, -ve of diode to any terminal of resistor/bulb since they dont have any polarity and can be connected in any way, then back again to the -ve of the battery. To connect voltmeter in parallel with the bulb, +ve of the voltmeter to be connected with the terminal of the bulb(which u can say acts as the +ve terminal since all connections are made with +ve first) and a connection from the -ve of the voltmeter is made to the other end of the bulb.

note it: voltmeter is always connected in parallel because of its high resistance.

Title: Re: Physics HELP =)
Post by: thecandydoll on June 02, 2010, 04:40:57 am

How to connect the resistors in parallel and series ,Can you draw me a diagram =)Just have to mention +ve and -ve and connections.

Title: Re: Physics HELP =)
Post by: Meticulous on June 02, 2010, 07:58:54 am

Quote from: thecandydoll on June 02, 2010, 04:40:57 am

How to connect the resistors in parallel and series ,Can you draw me a diagram =)Just have to mention +ve and -ve and connections.

Trust me, the site I posted contains ALL the practical details you will ever need.