Category Archives: Multimeter

Question about real circuits connection?

By Matt | Published: February 17, 2012
Question about real circuits connection? Moving from a schematic diagram TO the real thing. Simple Questions. Since the ammeter should be connected in series, why should the positive pole of a battery be connected to the ammeter’s “positive” plug. Won’t it be connected in parallel that way? If you didn’t get what I mean see the first [...]
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Help with a multimeter?

By Matt | Published: February 7, 2012
Help with a multimeter? how do I measure DC current on a multimeter? also how do I switch sensitivity levels on a multimeter?
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Suppose after charging a 11.3 µF capacitor to 6 V, you connect it to another already charged capacitor of 7.6?

By Matt | Published: February 6, 2012
Suppose after charging a 11.3 µF capacitor to 6 V, you connect it to another already charged capacitor of 7.6? I am confused on capacitors in my class can someone help me our with these please? Suppose after charging a 11.3 µF capacitor to 6 V, you connect it to another already charged capacitor of 7.6 µF [...]
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PHYSICS help!!!!!!!!?

By Matt | Published: January 27, 2012
PHYSICS help!!!!!!!!? A construction worker slides a 40kg block with a force of 210N [W] along a rough floor for 7.5m [W] and then picks up the block and places it on a wall 185cm high. Determine the energy needed to accomplish this task. State how a potential could be induced, using a bar magnet, in [...]
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What could be the problem that for JL W6 subwoofer that doesnt work?

By Matt | Published: January 16, 2012
What could be the problem that for JL W6 subwoofer that doesnt work? I have a 13W6 jl audio subwoofer which is pretty new. Sadly, it does not work. I want to know what could possibly the problem? The cones move up and down. I used a digital multimeter to test it and it [...]
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Finding Vsubscript a of a power source?

By Matt | Published: January 15, 2012
Finding Vsubscript a of a power source? On a given circuit with 2milliamps and 3 resistors 10,27,100k ohms. find the sources power if the voltmeter across the 10k ohm reads 30volts find if it reads 25v. Please explain how you found this. I tried taking sum of all resistance times current and cant get the right [...]
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"When the magnet is stationary describe and explain what is observed on the ammeter."?

By Matt | Published: January 2, 2012
"When the magnet is stationary describe and explain what is observed on the ammeter."? Physic’s GCSE homework, stuck. Help me please?
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I NEED HELP, MULTIMETERs ANYONE?

By Matt | Published: January 1, 2012
I NEED HELP, multimeters ANYONE? I bought a multimeter and have no idea how to use it except that the ohms range measures resisitance. The only thing is that the ohms range has many options to chose from you can chose 20M, 200K, 20K, and so on. I chose to use the 20M option. How would [...]
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Old house, "normal" electrical outlet labeled as 250V?

By Matt | Published: December 23, 2011
Old house, "normal" electrical outlet labeled as 250V? I have an outlet in a 100+ year old house with T-shaped slots and a rating of “10A 250V” on the side. Thing is, it is very similar to a normal 120V outlet — and upon checking with a voltmeter I noticed that it is in fact 120V. Here’s [...]
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Need to test a power supply, ATX to lab type?

By Matt | Published: December 3, 2011
Need to test a power supply, ATX to lab type? I’ve taken a pc ATX psu, and want to use it for 12v lab type to run a 12v radio. Its got enough amps in 12v mode, and should do for what i need. It doesnt have any switches on the back, so it’ll [...]
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