2011年2月2日 · The ohmmeter reading are actual readings. Take my 20K reading of .04. Larry says "For example, if you get a reading of 3.87 with the scale set to 20K, then the resistance is 3.87K ohms. So that means my resistance would be .04 ohms, but my reading at the 200 ohm scale was 44.9 ohms.

2009年1月27日 · Quick question with a long story for background. The question is, shouldn't a megger with it's higher voltage always read a lower resistance across insulation than a standard ohm meter due to the increased current leakage? The background, we had a 480V submersible pump trip it's breaker...

2014年4月29日 · An ordinary ohmmeter won't do it. From the ITT "Radio Engineers Handbook" the resistance of #3 Annealed copper wire at 20 C (68 F) is about 0.197 ohms per 1000n ft. Thus, your resistance for 600 ft would be about 0.118 ohms. To measure this you need a 4 terminal ohmmeter. This you can make by connecting a known DC current of about 10 A thru the ...

Q5/A- Design a series- type ohmmeter, consist of movement requires 0.5mA for full scale deflection and has an internal resistance of 5002. The internal battery has a voltage of 3V. The desired value of half- scale resistance is 300092.

Design a series-type ohmmeter, similar to the circuit of Fig. 4-22. The movement to be used requires 0.5 mA for full-scale deflection and has an internal resistance of 50. The internal battery has a voltage of 3.0 V. CHẠP. 4 PROBLEMS The desired value of half-scale resistance is 3,000 .

2014年8月7日 · When conducting a meg-ohmmeter test on a residential dwelling following a lightning strike, aside from "pass" on a digital meg-ohmmeter, what is considered an "acceptable" meg-ohmmeter rating in residential romex wiring?

B- A series- type ohmmeter, designed to operate with a 6V battery, has a circuit diagram as shown in figure below. The meter movement has an internal resistance of 3000 2 and requires a current of 100uA for full scale deflection the value of R1 is 49KQ. a) Assuming the battery voltage has fallen to 5V.

An ohmmeter is used for measuring the resistance of a circuit between its two terminals. What would be the reading of such an instrument used for the circuit of Fig. shown at point BC Transcribed Image Text: A₁ 153 50 B 25 m 8 ww 30 14 с 10 m www

2005年11月21日 · Take the "Uncoated ohm/kFT" rating in Table 8 and divide by 1000. This will give the resistance of 1 FT. Using an Ohmmeter, connect each lead to each end of the cable. Take that number and calculate how many times it will go into the 1 FT resistance. This will be your length. For example, say you have an unknown length of #2 AWG.

Q: A series ohmmeter is made up of the following components: supply voltage EB = 3 V, series resistor… A: Given: Eb=3VSeries resistance, R1=30 kΩMeter shunt resistance, R2=50ΩMeter resistance, Rm=50ΩMeter…