Physics AS level resistor question?Please can you give me a hand with this question? The thermistor T is a negative temperature coefficient type. The voltmeter is placed across the resistor R. (The two resistors are in series with the voltmeter connected ...Read More

Physics AS level resistor question?

  • Written by Michael.
  • Posted on December 8, 2010.
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Help in chemistry please !?Question 3 A scientist in London and a scientist in California both conducted independent investigations that produced similar results. What does this mean about the data that was collected? The findings are considered stronger and more reliable ...Read More

Help in chemistry please !?

  • Written by Michael.
  • Posted on December 1, 2010.
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Dishwasher, breaker off, still showing voltage?I am trying to uninstall a dishwasher. I turned off the breaker and I know it was the right one because the lighted buttons on the dishwasher turned off. I used a digital multimeter to ...Read More

Dishwasher, breaker off, still showing voltage?

  • Written by Michael.
  • Posted on November 27, 2010.
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Simple Shunt resistor calculator?I'm making a home-made ammeter to be integrated with a microcontroler. What I need to know is - what resistance of shunt do I need? I know that you can use voltage drop across a resistor to ...Read More

Simple Shunt resistor calculator?

  • Written by Michael.
  • Posted on November 4, 2010.
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please anyone help me to solve the electrical circuit problem?A PMMC meter has coil resistance Rm = 2.0 k? and a DC sensitivity S = 5 k?/V. It is to be used in a voltmeter for a range of 0–200 V. ...Read More

please anyone help me to solve the electrical circuit problem?

  • Written by Michael.
  • Posted on September 19, 2010.
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How to measure capacitance of a capacitor?Hi, How can I measure the capacitance of a capacitor, using the following: a battery, ? a digital voltmeter (which records voltage as a function of time), ? a digital ammeter (which records current as a function of time), ? an industrial ...Read More

How to measure capacitance of a capacitor?

  • Written by Michael.
  • Posted on September 15, 2010.
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Need Suggestions/ideas?i have a problem. when i connect the power wire from my HU to the battery i get a power drain (checked with multimeter) if i disconnect this wire the drain is gone. if kept connected it will eventually ...Read More

Need Suggestions/ideas?

  • Written by Michael.
  • Posted on July 30, 2010.
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Do analog ammeter and voltmeter need batteries to work? how about an ohmmeter?I don't mean "multitester", i mean analog ammeter alone and analog voltmeter alone...i just need to make an analog voltmeter, ammeter and ohmmeter on a breadboard provided with ...Read More

Do analog ammeter and voltmeter need batteries to work? how about an ohmmeter?

  • Written by Michael.
  • Posted on July 29, 2010.
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How does a digital multimeter work?Does it use magnetic field like the Volt-Ohm-Milliammeter? Read More

How does a digital multimeter work?

  • Written by Michael.
  • Posted on July 28, 2010.
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Where do i place the ammeter to measure the current flowing in a whole circuit and through a bulb?I am curious about where to place the ammeter so it can measure the current flowing through an electrical component and where ...Read More

Where do i place the ammeter to measure the current flowing in a whole circuit and through a bulb?

  • Written by Michael.
  • Posted on July 27, 2010.
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